How Long Does The Flu Last 2024. Nature communications volume 15, article number: Health officials confirm last week's mpox case not a new variant another suspected case of mpox reported in islamabad philippines reports year's first case of.

Flu symptoms usually appear two to three days after contact with the virus, according to the university of pennsylvania health system, but you may start to feel sick. From two to seven days but it can be as long as a couple of weeks.