Latest News Releases
:: Transcript for CDC Telebriefing: Update on COVID-19 Friday, February 21, 2020
MMWR News Synopsis Friday, February 21, 2020
Interim Estimates of 2019–20 Seasonal Influenza Vaccine Effectiveness — United States, February 2020
CDC preliminary vaccine effectiveness estimates indicate that the 2019-20 flu vaccine is providing substantial protective benefit, particularly among children, who were hard hit by flu this season. Flu vaccines are reducing doctor visits associated with flu illness by 45% overall and 55% in children. CDC’s interim flu vaccine effectiveness (VE) estimates show that the flu vaccine has reduced doctor visits associated with flu illness by almost half (VE = 45%) so far this season. This is consistent with estimates of flu vaccine effectiveness from previous seasons that ranged from 40%-60% when flu vaccine viruses were similar to circulating flu viruses. Vaccination is providing substantial protection (VE = 55%) for children, who have been particularly hard hit by flu this season.