Answers to Common Cold and Flu Questions

Premier Health providers answer frequently asked questions about cold and flu.

When is someone contagious with the flu?

People can be contagious with the flu even before they know they are infected with the virus.

For most healthy adults, they are able to infect other people one day before flu symptoms start, according to the Centers for Disease Control and Prevention (CDC). Symptoms can start between one and four days after the virus enters your body.

An adult with the flu will still be contagious for up to five to seven days after they first became sick. A child with the flu can be contagious for more than seven days, according to the CDC.

For more information about when someone is contagious with the flu, talk with your doctor.

Learn more:

Source: Meghan Brewster, MD, Beavercreek Family Medicine; Christopher Lauricella, MD, Family Medicine of Vandalia; Sally McIntyre, MD, Belmont Physicians; Josh Ordway, MD, Franklin Family Practice; Guillermo Trevino, MD, Covington Family Care; Lauren Roth, MD, Phillipsburg Family Care; Susan Davis-Brown, MD, Brookville Family Care; Amanda Fox, CNP, Dulan and Moore Dulan Family Wellness Center; Angelia Mickle, DNP, Jamestown Family Medicine; Leelmohan Ravikumar, MD, Troy Primary Care Physicians; Janet Smith, CNP, Southtown Family Practice; Aaron Block, MD, MPH, Franklin Family Practice; Anoopa Hodges, DO, Oakwood Primary Care

Guillermo “Bill” Trevino, MD

Guillermo “Bill” Trevino, MD

Miami County Internal Medicine

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Susan F. Davis-Brown, MD

Susan F. Davis-Brown, MD

Brookville Family Care

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