What Is Yellow Fever?
3. Incubation Period
Many diseases will not cause us to feel ill immediately, and it will take time for the yellow fever virus to proliferate to numbers significant enough to cause symptoms. In most cases the symptoms won’t appear for between 3 and 6 days after the initial infection took place. The period before symptoms do show is the incubation period.
Mosquito bites are common in many parts of the word, so a bite is not likely to alarm somebody that they might have been infected. Once the incubation period has passed and the patient starts showing symptoms, they will move into the acute phase.
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