Diseases Cause and Control — BIOLOGY STD 9 — Question
ICSE BoardEnglish MediumSTD 9BIOLOGYDiseases Cause and Control1 Mark
Question
Write very briefly about the following Incubation period
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Answer
It is the period between the entry of germs and the appearance of the first symptoms of the disease. Example: Incubation period of pneumonia is 1-3 days.
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