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

The development of effective vaccines to combat infectious diseases is a complex multi-year
and multi-stakeholder process. To accelerate the development of vaccines for coronavirus …

Importance Assessing COVID-19 vaccine performance against the rapidly spreading SARS-
CoV-2 Omicron variant is critical to inform public health guidance. Objective To estimate the …

Background Despite high vaccine coverage and effectiveness, the incidence of symptomatic
infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has been …

Background Despite the high efficacy of the BNT162b2 messenger RNA vaccine against
severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), rare breakthrough …

Background Vaccination, one of the most important and effective ways of preventing
infectious diseases, has recently been used to control the COVID-19 pandemic. The present …

Summary Background On Dec 20, 2020, Israel initiated a nationwide COVID-19 vaccination
campaign for people aged 16 years and older and exclusively used the Pfizer–BioNTech …

We have come a long way since the start of the COVID-19 pandemic—from hoarding toilet
paper and wiping down groceries to sending our children back to school and vaccinating …

Billions of doses of coronavirus disease 2019 (COVID-19) vaccines have been administered
globally, dramatically reducing severe acute respiratory syndrome coronavirus 2 (SARS …

Most subjects develop antibodies to SARS‐CoV‐2 following infection. In order to estimate
the duration of immunity induced by SARS‐CoV‐2 it is important to understand for how long …