CDC says the flu vaccine will be less effective this year
Flu vaccine might be less effective this year, new CDC report suggests
Last year, the CDC's report had estimated vaccine effectiveness in South America was 51.9% against hospitalization among at-risk groups. A study by the same group looking at data from 2013 to 2017 estimated effectiveness was around 43% for fully vaccinated young children and 41% for older adults.
The CDC says the flu vaccine will be less effective this year
Last year, the U.S. Centers of Disease Control and Prevention said that data indicated vaccines would reduce the risk of hospitalization by 50%. This year’s data indicates the 2025-25 season vaccine will reduce the risk by just 35%.
CDC warns flu vaccine may not be as effective in preventing hospitalization as previous seasons
Although the effectiveness of the vaccine in preventing hospitalizations appears to be lower in South America, the agency said vaccines still “significantly lowered the risk for hospitalization."
The Flu Vaccine Might Be Less Effective This Year
The CDC says the influenza vaccine being used this flu season might be less effective than the one used last flu season, based on reports of how well the vaccine is working in five South American countries.
Last school year, fewer kindergartners were vaccinated, CDC says
In turn, preventable diseases have resurfaced across the U.S. The risks can be serious and even fatal for children, family members and others around them, said Dr. Georgina Peacock, director of the CDC’s Immunization Services Division.
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