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After the latency period (but before clinical infection) the infected person can transmit the disease without signs of any symptoms. Such infection is called subclinical infection. Incubation period (also known as the latent period or latency period ) is the time elapsed between exposure to a pathogenic organism, a chemical, or radiation , and ...
[1] [2] The degree of infectiousness is not constant but varies through the infectious period. [3] When pathogens encounter a susceptible individual and enter their body, it is called the exposure moment, and the individual turns into a host for those pathogens. After entering a host's body (which marks the beginning of the infection process ...
However, for some infectious diseases, the symptoms of the clinical disease may appear after the host becomes infectious. In this case, the pre-infectious or latent period has a shorter duration than the incubation period, the infectious period begins before the end of the incubation period and the host can infect others for some time without ...
Here's how long it typically takes for symptoms to start.
HIV testing should be repeated four to six weeks and three months after exposure. [20] People may experience signs and symptoms of acute HIV infection, including fever, fatigue, myalgia, and skin rash, while taking PEP. CDC recommends seeking medical attention for evaluation if these signs and symptoms occur during or after the month of PEP.
It took just a few weeks for the FLiRT strains to overtake the JN.1 ... (a known COVID-19) exposure or symptoms, and it's negative," Cardona says, "either repeat testing the next day or, better ...
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During this period (usually days to weeks post-exposure) fifty to ninety percent of infected individuals develop an influenza or mononucleosis-like illness called acute HIV infection (or HIV prodrome), [2] [3] the most common symptoms of which may include fever, lymphadenopathy, pharyngitis, rash, myalgia, malaise, mouth and esophageal sores ...