Likewise, the app will warn you if one of your friends has been posting content that would make him or her more susceptible to flu, including stress at work or not sleeping well, giving you the option to message this person and warn him or her to stay away if you are ill.

Flu Near You

Flu Near You is a free online program that’s run by Healthmap of Boston Children’s Hospital in partnership with the American Public Health Association and the Skoll Global Threats Fund. According to the app’s information, users register and complete surveys to help everyone learn more about the flu, and then are able to learn where and how many flu cases have been reported in the United States based on user-contributed data. You can enter your zip code to find out where you can get vaccinated and use the links to public health sites to learn more about tracking the flu. You can check out this program at https://flunearyou.org.

Flu Defender

The Flu Defender app by Pocket Professions offers users a comprehensive guide to “everything you need to know about the flu.” Not only does it give users a generalized overview and understanding of flu facts, but it also provides information that is customized to their specific locations. Among the app’s features, you can learn how to avoid the flu, find out where you can get a local flu vaccine, track recent flu activity in your area, and help identify the source of any symptoms you may develop.

This app also integrates real-time messages from the CDC’s flu feed on Twitter, keeping you up to date on the latest flu information and statistics. This app is available free on iTunes.