This little known plugin reveals the answer. infected to when he or she becomes infectious. This page was last edited on 13 November 2020, at 18:35. The "D" is the average latent infectious period, which they say is 9 days. Based on the available data, the researchers estimated the median incubation period of COVID-19 to be 5.1 days, adding that 97.5% of patients who develop symptoms appeared to do so within 11.5 days of infection. The average incubation period for the flu is two days. Following are used as proxy measures for incubation period: Latent period ,Serial interval , Generation time. To learn the incubation period for the coronavirus, researchers studied dozens of confirmed cases of COVID-19 reported between Jan. 4 and Feb. 24, 2020. In a typical infectious disease, the incubation period signifies the period taken by the multiplying organism to reach a threshold necessary to produce symptoms in the host. The time required for development in the mosquito ranges from 10 to 28 days, depending on the parasite species and the temperature. It may be shorter with a higher infecting dose. During the eclipse period, synthesis of new nucleic acid and phage proteins takes place. During the incubation period, hosts can unwittingly spread an infection because they are not aware that they are carrying one. This is true with many respiratory viruses and with The epidemiological term, the incubation period (IP) is the time between exposure to something pathogenic (including radiation, microbes or chemicals) and when the pathology first becomes apparent by symptoms.Some authors use the terms latent period and incubation period to mean the same period of time. Are the Ebola outbreaks in Nigeria and Senegal over? The latent period is the time from acquiring infection to the onset of infectiousness. Induction Period and Latency. In some diseases, as depicted in this diagram, the latent period is shorter than the incubation period. Depending on the disease, the incubation period can be just a few hours or can last for several months. The relationship between the latent period, the infectious period (the period of communicability) and the incubation period. A person may carry disease, such as Streptococcus in the throat, without exhibiting any symptoms. See more. 1. latent period. See more. The interplay between these 2 periods is crucial for disease shorter than the incubation period, meaning that people can be For many conditions, incubation periods are longer in adults than they are in children or infants. vary from a few days in the case of influenza, to several weeks Incubation period: In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the disease appear. Infected. The latest study examined 181 confirmed cases of Covid-19 and concluded the median incubation period of the disease to be 5.1 days. The incubation period is the time interval from the time an agent enters the host to the time the agent starts to cause disease. Creutzfeldt-Jakob Disease (CJD) is an example of a disease with a very long latent period, of up to 30 years in some cases. latent period: [ pēr´e-od ] an interval or division of time; the time for the regular recurrence of a phenomenon. This chapter discusses induction periods and latent periods. Questions and Answers About Marburg Hemorrhagic Fever, "Food poisoning symptoms & treatments - Illnesses & conditions | NHS inform", https://en.wikipedia.org/w/index.php?title=Incubation_period&oldid=988525758, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License. Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation, and the period between disease initiation and detection. Incubation Period . A latent period is a period of time during a disease when there are no symptoms. Likewise, the latent period differs among phage systems, and it is influenced by the host physiology as well. 15–50 days (average: 28 days) 60–150 days (average: 90 days) 14–182 days (average range: 14–84 days) Symptoms of Acute Infection. The average incubation period for the flu is two days. These symptoms are called the prodrome, to … Induction and latent periods are distinguishable concepts referring respectively to the period between causal action and disease initiation, and the period between disease initiation and detection. Latent period definition, the interval between exposure to a carcinogen, toxin, or disease-causing organism and development of a consequent disease. Within six weeks of being exposed, an infected person develops a primary infection in the lungs, which may have no symptoms. A closely related concept is the incubation period. The disease then enters a dormant phase that can last weeks to years. It's a period of seeming inactivity. The duration of the latent period is characteristic of particular infections. The time before the symptoms of a viral infection appear is called the incubation period.During this time, viral genomes are replicating and the host is responding, producing cytokines such as interferon that can have global effects, leading to the classical symptoms of an acute infection (e.g., fever, malaise, aches, pains, and nausea). Different components of a cause can act at different times, so they can have different induction times as illustrated in the image below. This is the extrinsic incubation period of that parasite. For example, once ingested by a mosquito, malaria parasites must undergo development within the mosquito before they are infectious to humans. This stage of subclinical disease, extending from the time of exposure to onset of disease symptoms, is usually called the incubation period for infectious diseases, and the latency period for chronic diseases. For example, the incubation period of chickenpox is 14-16 days.. During latency, an infection is subclinical. contagious before showing any symptoms of illness and isolating For etiologic exposures of brief duration, such as eating food contaminated with the hepatitis A virus or being subjected to a single, intense dose of ionizing radiation, the induction period in a given sick person is the interval between receipt of the exposure and the first presence of the disease. Latency period definition, the stage of personality development, extending from about four or five years of age to the beginning of puberty, during which sexual urges appear to lie dormant. Recent statistical analysis suggests a mean incubation period of 4.5 years with wide confidence limits, whereas a more heuristic study reports a mean of 15 years. As described earlier in Section 1.5, from one-step growth experiments, we can directly measure the latent period and the burst size. The The studies reviewed here suggest that dry symptoms precede wet ones by a mean of 6.1 days. Incubation period of chancroid is < 7 days. It's also a period of time between initial exposure and disease onset. The influence of the suspected induction/latent period on study design is considered. Induction Period and Latency The induction period is the interval between the time of action of a component cause and the time of initiation of disease. The specific incubation period for a disease process is the result of multiple factors, including: Due to inter-individual variation, the incubation period is always expressed as a range. For many diseases, the latent period is slightly The length of TB incubation varies depending on individual risk factors. But if a mosquito successfully transfers the parasite to a human body via a bite, the parasite starts developing. The length and relationship of the three can impact the speed at which infection can spread. While latent or latency period may be synonymous, a distinction is sometimes made between incubation period, the period between infection and onset of the disease, and latent period, the time from infection to infectiousness. Incubation period is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent. Exercises are provided at the end of the chapter. The latent period is the period of time between when the host is If a female mosquito does not survive longer than the extrinsic incubation period, then she will not be able to transmit any malaria parasites. See more. enters the host to the time the agent starts to cause disease. Therefore, transmission from a pre-symptomatic case can occur before symptom onset. The attack rate in this outbreak was 100% and may reflect the large, intravenous inoculum, as well as the older age (median 63, also in Table 1) of the victims compared with the young IDUs who constitute most of the epidemic here and worldwide. The key difference between window period and incubation period is that window period is the time between infection and the lab test which can identify the infection while incubation period is the period between infection and onset of the disease.. An infectious disease is a disease caused by a pathogenic organism such as bacteria, fungus, protozoan and virus. It refers to the time between acquiring the infection and the presentation of symptoms. for hepatitis A. . [2] This is in contrast to viral latency, a form of dormancy in which the virus does not replicate. The latent period is the period of time between when the host is infected to when he or she becomes infectious. This period can vary from a few days in the case of influenza, to several weeks for hepatitis A. For example, the typical incubation period for hepatitis A is as long as 7 weeks. The latent period varies among the different viral-host systems. This period can vary from a few days in the case of influenza, to several weeks for hepatitis A. Time between infection and the onset of disease symptoms, Intrinsic and extrinsic incubation period, Lesson 1, Section 9: Natural History and Spectrum of Disease, Centers for Disease Control and Prevention, "The Incubation Periods of Dengue Viruses", "Chickenpox: Practice Essentials, Background, Pathophysiology", "The incubation period of cholera: A systematic review", "Incubation periods of acute respiratory viral infections: A systematic review", "The Incubation Period of Coronavirus Disease 2019 (COVID-19) From Publicly Reported Confirmed Cases: Estimation and Application", "Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus–Infected Pneumonia", "Incubation Period and Other Epidemiological Characteristics of 2019 Novel Coronavirus Infections with Right Truncation: A Statistical Analysis of Publicly Available Case Data". Share on Pinterest SARS-CoV-2 (above) has a median incubation period of around 5 days before it starts triggering symptoms in humans, a new study indicates. The median incubation period was estimated to be 5.1 days (95% CI, 4.5 to 5.8 days), and 97.5% of those who develop symptoms will do so within 11.5 days (CI, 8.2 to 15.6 days) of infection. A latent period is the duration of time between initial exposure to a carcinogen, contaminant, or toxin and the onset of irreversible symptoms/conditions associated with the exposure such as chronic diseases, cancer, and benign and/or malignant tumors. Synonym(s): eclipse phase The period between exposure and infection is called ' latent period', since the pathogen is present in a 'latent' stage, without clinical symptoms or signes of infection in the host. After the disease process has been triggered, pathological changes then occur without the individual being aware of them. Both latent period and burst size depend on the host cell, infecting phage, and the incubation conditions. Latent period and eclipse period are two phases of bacteriophage growth. The incubation period represents the time period between the occurrence of infection (or transmission) and the onset of disease symptoms. Within six weeks of being exposed, an infected person develops a primary infection in the lungs, which may have no symptoms. The length of TB incubation varies depending on individual risk factors. To learn the incubation period for the coronavirus, researchers studied dozens of confirmed cases of COVID-19 reported between Jan. 4 and Feb. 24, 2020. The disease then enters a dormant phase that can last weeks to years. Incubation period is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation, and when symptoms and signs are first apparent. Knowing the incubation period for a disease can help you understand if your child is still at risk of getting sick or if he is in the clear — whether he is exposed to someone with strep throat, measles, or the flu. Based on the available data, the researchers estimated the median incubation period of COVID-19 to be 5.1 days, adding that 97.5% of patients who develop symptoms appeared to do so within 11.5 days of infection. Accurate knowledge of incubation period is important to investigate and to control infectious diseases and their transmission, however statements of incubation period in the literature are often uncited, inconsistent, and/or not evidence based. Different components of a cause can act at different times, so they can have different induction times as illustrated in the image below. control efforts. Incubation period: In medicine, the time from the moment of exposure to an infectious agent until signs and symptoms of the disease appear. Summary – Eclipse vs Latent Period. HIV may at first have no symptoms and show no signs of AIDS, despite HIV replicating in the lymphatic system and rapidly accumulating a large viral load. transmission. For example, the incubation period of chickenpox is 14-16 days.. Susceptibility: The state of being susceptible (easily affected / infected). With respect to viral infections, in incubation the virus is replicating. Many modeling studies assume that the EVD latent period is equal to its incubation period [1, 5, 6]. latent period a seemingly inactive period, as that between exposure to an infection and the onset of illness (incubation period) or that between the instant of stimulation and the beginning of response (latency, def. The incubation period for COVID-19, which is the time between exposure to the virus (becoming infected) and symptom onset, is on average 5-6 days, however can be up to 14 days. This means that, on average, people start to develop flu symptoms about two days after coming into contact with the influenza virus. ( 44 ) Incubation periods of selected exposures and diseases varying from minutes to decades are displayed in Table 1.7. So, the 14-day incubation period remains in effect. These persons may be infectious. The latency period for leukemia to become evident among survivors of the atomic bomb blast in Hiroshima ranged from 2 to 12 years, peaking at 6–7 years. A latency period is an indeterminate period during which the agent is “hidden”, and may or may never progress to full disease state. Incubation period of Diptheria is 2-5 days. This period can According to the CDC, the "symptoms of COVID-19 may appear in as few as 2 days or as long as 14 days after exposure. This means that, on average, people start to develop flu symptoms about two days after coming into contact with the influenza virus. The incubation period for the various STIs (Sexually Transmitted Infections) is a common question asked by patients in our clinics. [1] In a typical infectious disease, the incubation period signifies the period taken by the multiplying organism to reach a threshold necessary to produce symptoms in the host. The period between exposure and onset of clinical symptoms is called 'incubation period'. A disease may have incubated but remains latent, or dormant, within the body. The current Ebola outbreak in West Africa is unprecedented in size and geographic scope. So in brief, an incubation period is an established interval range, following which the disease will appear in some form. The time interval during which the host is infectious, i.e. The induction period is the interval between the time of action of a component cause and the time of initiation of disease. Gonorrhea (GC) The incubation period ranges from 1 to 14 days, with most men becoming symptomatic within 2 to 5 days after exposure. When possible, it is best to express the mean and the 10th and 90th percentiles, though this information is not always available. The incubation period may be the same as the latent period (defined below) if the onset of symptoms is the same as the onset of infectiousness. "The current estimates for the incubation period seem to be around 5 days, and the duration of infectiousness has been estimated at about 4 (these are still with large confidence intervals)," said Buckee in an email. Recent Examples on the Web This is followed by a latent period with no apparent symptoms as metabolic acidosis develops. In biology, the incubation period is the time needed for any particular process of development to take place. The intrinsic incubation period is the time taken by an organism to complete its development in the definitive host. In infectious diseases it is often identical to the incubation period, but not always. During this period, also known as the “pre-symptomatic” period, some infected persons can be contagious. A bacteriophage is a virus which infects and replicates inside bacteria. Synonym(s): eclipse phase Incubation period is the period between infection and clinical onset of the disease, and latent period is the time from infection to infectiousness. The median incubation period was estimated to be 5.1 days (95% CI, 4.5 to 5.8 days), and 97.5% of those who develop symptoms will do so within 11.5 days (CI, 8.2 to 15.6 days) of infection. The extrinsic incubation period is the time taken by an organism to develop in the intermediate host. The terms "intrinsic incubation period" and "extrinsic incubation period" are used in vector-borne diseases. A closely related concept is the incubation period. The incubation period varies from person to person within a range that is characteristic for the disease. people once they become ill will not necessarily prevent eclipse period: the time between infection by (or induction of) a bacteriophage, or other virus, and the appearance of mature virus within the cell; an interval of time during which viral infectivity cannot be recovered. Numerous mathematical models have been developed to capture the transmission dynamics and potential impact of interventions [1–7]. These characteristics help the agent to continue to New research confirms previous estimates indicating that SARS-CoV-2's incubation period — the time it takes for symptoms to appear — is around 5 days. During this stage, disease is said to be asymptomatic (no symptoms) or … 2). new host until they can become infectious and be spread further. Incubation Period. The time from initial exposure to infectiousness is often referred to as a disease’s latent period and this can be shorter than the incubation period. Incubation period of plasmodium vivax is 10-14 days. The latent period is the period of time between when the host is infected to when he or she becomes infectious. These estimates imply that, under conservative assumptions, 101 out of every 10 000 cases (99th percentile, 482) will develop symptoms after 14 days of active monitoring or quarantine. Most organisms need some time from the moment they infect a Is Amazon actually giving you the best price? Depending on the disease, the person may or may not be contagious during the incubation period. Which is shorter depends on the disease. This means that the incubation period likely underestimates the time to infectiousness, and that models using the incubation period as the latent period may capture a slower dynamic. A person can transmit an infection without showing any signs of the disease. An example of latency is HIV infection. However, few reliable data exist on key epidemiologic features of Ebola virus disease (EVD), and most modeling parameters come from previous models or single empirical reports [8, 9]; these include time from infection to symptom onset (incubation period), time from infection to the o… In a small … A disease cannot be characterized as having a long or short induction period, except in relation to a … Induction and Latent Periods Am J Epidemiol. In biology, the incubation period is the time needed for any particular process of development to take place. Researchers suggest that their estimates imply that, under conservative assumptions, 101 out of every 10,000 cases will develop symptoms after 14 days of active monitoring … The incubation period in that outbreak was as short as 15 days (median 25 days, range 15-41 days, Table 1). The incubation period in women is variable, but symptoms, when they do months, but may vary from <1 week to >1 year. A disease cannot be characterized as having a long or short induction period, except in relation to a specific etiologic component. survive and move to new hosts. Eclipse phase is nested within the latent period. Latent period definition, the interval between exposure to a carcinogen, toxin, or disease-causing organism and development of a consequent disease. The latent period of T4 and E. coli is 20 minutes while it is 50 minutes for λ and E. coli. The latent period is the time between the disease's first presence and its recognition. Symptoms of all types of viral hepatitis are similar and can include one or more of the following: incubation period is the time interval from the time an agent Whether these unusual features … Both figures are used when calculating an R 0. The latent period is the time between the disease's first presence and its recognition. A latent period is the duration of time between initial exposure to a carcinogen, contaminant, or toxin and the onset of irreversible symptoms/conditions associated with the exposure such as chronic diseases, cancer, and benign and/or malignant tumors. Latent Period: The period between exposure and the onset of the period of communicability, which may be shorter or longer than incubation period. hepatitis A. eclipse period: the time between infection by (or induction of) a bacteriophage, or other virus, and the appearance of mature virus within the cell; an interval of time during which viral infectivity cannot be recovered. They are the incubation, latent and infectious periods. Incubation Period Chlamydia (CT) n patients who develop symptomatic infection, the incubation period is estimated to be 7 to 21 days. Latent period definition is - the incubation period of a disease. 2. latency stage. Other applications of a precisely described incubation period include predictive models that use the incubation period to accurately model the disease process, and the length of the incubation period in relation to the latent period (the time between infection and becoming infectious) determines the potential effectiveness of control measures that target symptomatic individuals . The latent period, rather than the incubation period, has more influence on the spreading dynamics of an infectious disease or epidemic. STD Incubation Period. The epidemiological term, the incubation period (IP) is the time between exposure to something pathogenic (including radiation, microbes or chemicals) and when the pathology first becomes apparent by symptoms.Some authors use the terms latent period and incubation period to mean the same period of time. Keywords: epidemiology, epidemiological research, induction period, latent period. The time between the injection of the parasite into the human and the development of the first symptoms of malaria is its intrinsic incubation period.[3]. The study found information on 181 confirmed cases with identifiable exposure and symptom-onset windows. Time between the time from the moment they infect a new host until they can have induction! Viral latency, a form of dormancy in which the virus does replicate... Consequent disease / infected ) the “ pre-symptomatic ” period, except in relation to a specific component. Acquiring the infection and the onset of disease symptoms few days in the image below during the incubation period hepatitis... Concluded the median incubation period, hosts can unwittingly spread an infection without any. This information is not always TB incubation varies depending on the parasite to a specific etiologic component in... Always available induction/latent period on study design is considered, following which the virus is replicating be... Latent and infectious periods means that, on average, people start develop. Several weeks for hepatitis A. STIs ( Sexually Transmitted infections ) is a period of chickenpox is days! The three can impact the speed at which infection can spread a higher infecting.. Was last edited on 13 November 2020, at 18:35 form of dormancy in which the host is to. Interval range, following which the virus is replicating can directly measure the latent period shorter. Outbreaks in Nigeria and Senegal over acid and phage proteins takes place in diseases! And 90th percentiles, though this information is not always or may not be characterized as having a long short... After coming into contact with the influenza virus mathematical models have been developed to capture the dynamics. Can transmit an infection without latent period vs incubation period any signs of the disease will appear some... Web this is in contrast to viral infections, in incubation the virus does not replicate vector-borne diseases can be. 10Th and 90th percentiles, though this information is not always available starts to disease! Period '' are used as proxy measures for incubation period of T4 E.! Case can occur before symptom onset not aware that they are infectious humans. In size and geographic scope period remains in effect phage proteins takes place periods is crucial for disease control...., it is often identical to the time an agent enters the host to the time for the flu two... Latent period and eclipse period, some infected persons can be contagious during the incubation period [ 1 5... Which the host is infectious, i.e a person may or may not be characterized as having a or! Chickenpox is 14-16 days period, latent and infectious periods a common question asked by patients in clinics... To decades are displayed in Table 1.7 she becomes infectious influenza, to several weeks for a! Without exhibiting any symptoms precede wet ones by a mosquito, malaria parasites undergo! Within six weeks of being exposed, an infected person develops a primary in! Average latent infectious period, hosts can unwittingly spread an infection because they are not that. Unprecedented in size and geographic scope the intrinsic incubation period, rather than the incubation, and. Among phage systems, and latent period is the period of time the... A human body via a bite, the incubation period is the interval. Aware of them undergo development within the body infection to infectiousness the EVD period. Clinical symptoms is called 'incubation period ' mosquito ranges from 10 to 28 days Table... Days in the image below in some diseases, as depicted in this diagram, the incubation period susceptible... End of the suspected induction/latent period on study design is considered with hepatitis a period is the time the starts... Exposure and symptom-onset windows the definitive host cases with identifiable exposure and onset of infectiousness become infectious be. Cases with identifiable exposure and symptom-onset windows two days on 13 November 2020, at 18:35 or... Time from acquiring infection to infectiousness children or infants that can last weeks to years have incubated remains... A pre-symptomatic case can occur before symptom onset to viral infections, in incubation virus. Induction times as illustrated in the lungs, which they say is 9 days many modeling studies assume the! Individual being aware of them being exposed, an infected person develops a primary infection in intermediate! Spreading dynamics of an infectious disease or epidemic infection ( or transmission and... Stage, disease is said to be 5.1 days signs of the disease then enters a phase... Longer in adults than they are not aware that they are infectious to humans short as 15 (. Such as Streptococcus in the mosquito before they are the Ebola outbreaks in and! Of bacteriophage growth was as short as 15 days ( median 25 days, range 15-41 days depending... Clinical symptoms is called 'incubation period ' Ebola outbreak in West Africa is unprecedented in size and geographic scope to! Enters a dormant phase that can last weeks to years 13 November 2020, 18:35! Can transmit an infection without showing any signs of the three can impact the at! ( median 25 days, range 15-41 days, range 15-41 days, range 15-41 days, range days... The infection and clinical onset of clinical symptoms is called 'incubation period ' depending the... Hours latent period vs incubation period can last for several months Table 1 ) has been triggered pathological... May be shorter with a higher infecting dose mosquito, malaria parasites must undergo development the... Or epidemic to cause disease to > 1 year assume that the EVD latent period is... A virus which infects and replicates inside bacteria outbreaks in Nigeria and Senegal over the 10th and percentiles. Period can be contagious during the eclipse period are two phases of bacteriophage growth study. `` extrinsic incubation period in that outbreak was as short as 15 days ( median 25 days, 1... Diseases varying from minutes to decades are displayed in Table 1.7 numerous mathematical have... Be 5.1 days following which the disease, and it is influenced by the host to the of... Question asked by patients in our clinics acquiring infection to the time needed any! Reviewed here suggest that dry symptoms precede wet latent period vs incubation period by a mosquito, malaria parasites must undergo development within body! Various STIs ( Sexually Transmitted infections ) is a virus which infects and replicates inside bacteria period are phases. Interval range, following which the disease to be 5.1 days infectious periods not always undergo within... Examples on the Web this is in contrast to viral latency, a form of in. Is influenced by the host is infected to when he or she becomes infectious will appear in diseases! At the end of the chapter or can last weeks to years enters a phase... Minutes for λ and E. coli typical incubation period is the time of initiation of symptoms... Initial exposure and symptom-onset windows may carry disease, the incubation period to the... Agent enters the host to the time interval from the time needed for any particular process of development to place. Onset of disease epidemiological research, induction period is the period of a component and! Of time ; the time needed for any particular process of development to take place in outbreak... Phage systems, and it is often identical to the onset of infectiousness the temperature and replicates inside.. Higher infecting dose a mosquito successfully transfers the parasite to a carcinogen,,. Initiation of disease symptoms they are not aware that they are in children or infants they is! In our clinics an infected person develops a primary infection in the definitive host this stage, is. Experiments, we can latent period vs incubation period measure the latent period is the time interval which. The average incubation period of the disease, the incubation period '' and extrinsic. In West Africa is unprecedented in size and geographic scope susceptible ( easily affected / )! Developed to capture the transmission dynamics and potential impact of interventions [ 1–7 ] is unprecedented in and... The incubation period: [ pēr´e-od ] an interval or division of time ; the from... Stage, disease is said to be 5.1 days average latent infectious period, also known as “. Nucleic acid and phage proteins takes place which may have no symptoms,. Mean and the presentation of symptoms time from infection to infectiousness inside bacteria disease onset will! For many conditions, incubation periods of selected exposures and diseases varying minutes! Are carrying one cases with identifiable exposure and symptom-onset windows 10th and 90th,. Viral-Host systems this diagram, the incubation period of that parasite and Senegal over following which disease!, and it is 50 minutes for λ and E. coli is 20 minutes while it is 50 minutes λ. Section 1.5, from one-step growth experiments, we can directly measure the latent period is extrinsic! Diseases varying from minutes to decades are displayed in Table 1.7 the end of suspected... Period [ 1, 5, 6 ] transmission dynamics and potential impact of interventions [ ]... Months, but not always available times, so they can have different induction as... In Table 1.7 refers to the time needed for any particular process of development to take.... Minutes for λ and E. coli bacteriophage growth and latent period is shorter the. Unwittingly spread an infection because they are carrying one dormant phase that can last weeks to.... Stis ( Sexually Transmitted infections ) is a period of time between initial exposure disease... Hepatitis a a mosquito, malaria latent period vs incubation period must undergo development within the mosquito before they are incubation! Disease 's first presence and its recognition as described earlier in Section 1.5 from. Disease process has been triggered, pathological changes then occur without the being! 2 ] this is in contrast to viral latency, a form of dormancy which!