incubation period the flu - Health Topics
An incubation period is the span of time between exposure to an infectious disease and the start of symptoms. It’s usually measured in days or weeks. What is an incubation period?
Understanding the Context
An incubation period is the time interval between exposure to a pathogen (e.g., virus, bacteria, or parasite) and the onset of signs or symptoms of illness in an infected person. Incubation The time period between exposure to an infectious agent, such as a virus or bacteria, and the appearance of symptoms of illness. incubation noun [U] (OF DISEASE) the process or period of time in which harmful bacteria or viruses increase in size or number in a person's or animal's body but do not yet produce the effects of disease: The incubation period begins with exposure to an infection and ends once symptoms start. Review the incubation periods of 32 different infectious diseases.
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Key Insights
An incubation period is when a disease takes hold and produces symptoms — and it's also the phase of an egg getting ready to hatch. The egg meaning of incubation is the original one — the word is derived from the Latin incubare, "to hatch." HoopsHype: What flu is going around 2026? Flu A, flu B symptoms, differences The 2025-2026 flu season is surging in the U.S. and New Jersey, where there's been increased severity of influenza A, with further testing from the CDC showing many NJ residents have the emerging ...