COVID-19 Vaccines and Boosters? What to Know.
All currently approved or authorized COVID-19 vaccines are safe and effective and reduce your risk of severe illness. Vaccines reduce the risk of COVID-19, including the risk of severe illness and death among people who are fully vaccinated. In addition to data from clinical trials, evidence from real-world vaccine effectiveness studies show that COVID-19 vaccines help protect against COVID-19 infections, with or without symptoms. Vaccine effectiveness against hospitalization