Nursing & Healthcare News
Vaccines Holding Strong Against Delta Variant
Study finds no evidence of additional breakthrough infection
If this summer’s surge in new infections has you worrying about the long-term effectiveness of COVID-19 vaccination, here’s some good news: A new study finds that the vaccines remain highly effective against the Delta variant.
Much Less Than Feared
The study, conducted at Argonne National Laboratory, analyzed time series data on COVID-19 test results by vaccination status. It concluded that the actual impact of the Delta variant on vaccine effectiveness appears much less than initially feared.
The authors examined data from seven U.S. states, five additional counties (including three in California), and the District of Columbia for the period May 15 through Sep. 15, 2021, during which the Delta variant became the dominant strain in the U.S.