Billions of doses of COVID-19 vaccines have been administered globally, dramatically
reducing SARS-CoV-2 incidence and severity in some settings. Many studies suggest …

Since our previous editorial in September 2021, 1 a growing body of evidence about covid-
19 vaccine effectiveness, including that of third and booster doses, has been published, and …

Interim recommendations for heterologous COVID-19 vaccine schedules Page 1 -1- Interim
recommendations for heterologous COVID-19 vaccine schedules Interim guidance 16 December …

Analysis of anti-Omicron neutralizing antibody titers in different convalescent plasma sources
Page 1 1 Analysis of anti-Omicron neutralizing antibody titers in different convalescent plasma …

COVID-19 remains a major public health concern, with large resurgences even where there
has been widespread uptake of vaccines. Waning immunity and the emergence of new …

Epidemiologisches Bulletin 48/2021 Page 1 Wissenschaftliche Begründung der STIKO zur
Aktualisierung der Empfehlung der COVID-19-Auffrischimpfung mit einem mRNA-Impfstoff 1 …

COVID-19 Evidence Support Team RAPID REVIEW REPORT Updated Key Findings Key
Findings How effective are COVID-19 vaccines? Page 1 Rapid Review Report: INF031801v013 …

Background To date in Canada, four vaccines have been approved to prevent coronavirus
disease 2019 (COVID-19). While their short-term (< 4 months) effectiveness in preventing …

Global case and death incidences continued to decrease with over 3 million new weekly
cases and over 73 000 new deaths, a 15% and an 8% decrease respectively, compared to …