What is the incubation period of H1N1 flu?
The incubation period is the period between when you contract the virus and when you first manifest symptoms. At this time, we are not quite sure how long the incubation period is for this new H1N1 virus. Estimates range from 1 to 7 days, but most probably it is from 1 to 4 days. More than likely, a person begins to shed the virus and therefore becomes infectious about a day before manifesting any symptoms.
