We evaluate the impact of government mandated proof of vaccination requirements for access to public venues and non … surge in new vaccinations (more than 60% increase in weekly first doses) using the variation in the timing of these measures … vaccination rates and 790,000 or more first doses for Canada as a whole as of October 31, 2021 (5 to 13 weeks after the provincial …

SARS-CoV-2, the coronavirus, spread across Germany within just a short period of time. Seroepidemiological studies are …, we were able to identify a history of vaccination or infection in study participants. By combining these results with …-term impacts of the COVID-19 pandemic, including effects of long COVID, in diverse areas of life. Furthermore, the data provide …

our social, economic, and political life. Global vaccination should help the world overcome the pandemic and return to a …The COVID-19 pandemic has massively impacted the health of many people worldwide and poses significant challenges for … "normal" life. In Germany, the Federal Ministry of Health presented its "National Vaccination Strategy COVID-19", which …

vaccination policies during the Cold War era. We provide formal evidence that there is indeed a sizable discontinuity in COVID-19 … cases at the border. However, we also find that the difference in novel coronavirus prevalence is uniform across age groups … canonical SIR model of the epidemic in each German county, allowing infections to spread along commuting patterns. We find that …