Flu Shots Less Effective In South: Why CDC Urges Vaccination Despite Similar U.S. Forecast

Apart from vaccination, for high-risk groups, the CDC further recommends the use of antiviral treatments to reduce the severity of infections and prevent complications. (Credit: Image by wayhomestudio on Freepik)

The influenza vaccine has been less effective in the southern hemisphere this year, a recent report from the Center for Disease Control and Prevention,(CDC) revealed.

The flu shot reduced the risk of hospitalization among high-risk groups by 35% in five South American countries, Argentina, Brazil, Chile, Paraguay, and Uruguay, according to the interim vaccine effectiveness report by the CDC. High-risk individuals include young children, older adults, and those with pre-existing conditions.