A public database that collects reports of vaccine side effects isn’t considered a reliable source of information about risks associated with COVID-19 vaccines.
Established in 1990, the Vaccine Adverse Event Reporting System (VAERS) collects reports of potential side effects from licensed vaccines. Interest in the database, publicly available online, has grown since COVID-19 vaccines were approved, but the data can be misleading if used to make a direct connection to the reported deaths and injuries.
Number of COVID-19 Omicron variant cases in Europe as of November 29, 2021, by country
In late-November 2021, the Omicron variant of SARS-CoV-2 (the virus which causes COVID-19) was designated as a variant of concern by the World Health Organization due to fears about a higher transmissibility from the variant and a possible decrease in the effectiveness of vaccines against it.