A diverse array of successful, first-generation SARS-CoV-2 vaccines have played a huge
role in efforts to bring the COVID-19 pandemic under control, even though inequitable …

Breakthrough infections with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-
2) in fully vaccinated individuals are receiving intense scrutiny because of their importance …

In the coronavirus efficacy (COVE) phase 3 clinical trial, vaccine recipients were assessed
for neutralizing and binding antibodies as correlates of risk for COVID-19 disease and as …

Background The emergence of the B. 1.617. 2 (delta) variant of severe acute respiratory
syndrome coronavirus 2 and the reduced effectiveness over time of the BNT162b2 vaccine …

Background Population-based data from the United States on the effectiveness of the three
coronavirus disease 2019 (Covid-19) vaccines currently authorized by the Food and Drug …

Vaccination policies have shifted dramatically during COVID-19 with the rapid emergence of
population-wide vaccine mandates, domestic vaccine passports and differential restrictions …

Patients with cancer have a higher risk of severe coronavirus disease (COVID-19) and
associated mortality than the general population. Owing to this increased risk, patients with …

We report severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine
effectiveness against infection (VE-I) and death (VE-D) by vaccine type in 780,225 veterans …

In 2019 there was an outbreak of coronavirus pandemic also known as COVID-19. Many
scientists believe that the pandemic originated from Wuhan, China, before spreading to …

Background Large-scale vaccination against COVID-19 is being implemented in many
countries with CoronaVac, an inactivated vaccine. We aimed to assess the immune …