Study shows why second dose of COVID-19 vaccine should not be skipped - Sify News
Study shows why second dose of COVID-19 vaccine should not be skipped - Sify News
Jul 20, 202112 secs
Washington [US], July 20 (ANI): The second dose of a COVID-19 vaccine induces a powerful boost to a part of the immune system that provides broad antiviral protection, according to a study led by investigators at the Stanford University School of Medicine.