page = covid-19 : npr
url = https://www.npr.org/tags/804916759/covid-19
A woman receives the Johnson & Johnson COVID-19 at a drive-in vaccination event last week in Meerbusch, Germany. Lukas Schulze/Getty Images hide caption
Lukas Schulze/Getty Images
New Evidence Suggests COVID-19 Vaccines Remain Effective Against Variants

June 9, 2021 • An analysis of blood from people who had received the Johnson & Johnson COVID-19 vaccine found a lower level of neutralizing antibodies against viral variants but a strong response involving T cells.

New Evidence Suggests COVID-19 Vaccines Remain Effective Against Variants