page = covid-19 : npr
url = https://www.npr.org/tags/804916759/covid-19
To more fully understand vaccine-induced immunity, researchers are comparing antibody levels in people who received the Moderna vaccine but still got COVID-19 with levels in people who got the vaccine but didn't fall ill. Angela Weiss/AFP via Getty Images hide caption
Angela Weiss/AFP via Getty Images
New Blood Tests Should Show How Long A COVID-19 Vaccine Will Protect You
April 28, 2021 • Researchers are trying to come up with tests that can be performed using a blood sample that will determine not only whether a COVID-19 vaccine will work, but for how long.
New Blood Tests Should Show How Long A COVID-19 Vaccine Will Protect You
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