Background Vaccines are critical cost-effective tools to control the coronavirus disease 2019
(COVID-19) pandemic. However, the emergence of variants of the severe acute respiratory …

Considerations in boosting COVID-19 vaccine immune responses - The Lancet Skip to Main
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) Omicron (B. 1.1. 529)
variant is highly transmissible with potential immune escape. We conducted a test-negative …

Objective To evaluate the effectiveness of heterologous and homologous covid-19 vaccine
regimens with and without boosting in preventing covid-19 related infection, hospital …

Importance The number of SARS-CoV-2 infections and COVID-19–associated
hospitalizations and deaths prevented among vaccinated persons, independent of the effect …

Since commencement of COVID-19 pandemic, several SARS-CoV-2 variants have emerged
amid containment efforts via vaccination. The Delta variant (B. 1.617. 2), discovered in …

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

Despite vaccine availability, influenza remains a substantial global public health concern.
Here, we report interim findings on the primary and secondary objectives of the safety …

Messenger RNA (mRNA) vaccines against COVID‐19 are the first authorized biological
preparations developed using this platform. During the pandemic, their administration has …

Purpose To evaluate the immunogenicity of COVID-19 vaccines in patients with diabetes
mellitus (DM) through a systematic approach. Method A comprehensive search was …