New CDC studies: COVID-19 boosters remain safe, continue to offer high levels of protection against serious illness over time and during Omicron and Delta waves | CDC Online Newsroom
New CDC studies: COVID-19 boosters remain safe, continue to offer high levels of protection against serious illness over time and during Omicron and Delta waves |  CDC Online Newsroom

New CDC studies: COVID-19 boosters remain safe, continue to offer high levels of protection against serious illness over time and during Omicron and Delta waves | CDC Online Newsroom

Data from two CDC reports today show that COVID-19 vaccine enhancers remain safe and continue to be extremely effective against serious disease over time.

In the first study, the CDC reviewed data from two of their vaccine safety monitoring systems, v-safe and Vaccine Adverse Event Reporting System (VAERS). They found that people 18 years and older who received the same mRNA vaccine label for all their vaccinations experienced fewer side effects after the booster dose than they did after their second dose of mRNA vaccine. 92 percent (92%) of the reports to VAERS were not considered severe, and headache, fever, and muscle aches were among the most frequently reported reactions. V-safe data found that medical care was rarely received after a booster dose.

Another study reveals that a third-dose mRNA vaccine continues to offer high levels of protection against serious illness, even months after administration, underscoring the importance of staying up-to-date when qualified after receiving a primary series. The CDC examined data on 93,000 hospitalizations and 241,000 emergency departments and emergency care visits in 10 states during the Delta and Omicron waves. In the study, about 10% of the individuals were boosted, and over 50% of the inpatients were over 65 years of age. Under Omicron, vaccine efficacy against hospitalization was 91% during the first two months after a third dose and remained high, at 78%, four or more months after a third dose.

Boosters are safe and effective, and the CDC continues to recommend that everyone 5 years of age and older stay up to date with recommended COVID-19 vaccinations to ensure optimal protection against hospitalizations and serious outcomes. For most, this means getting a booster dose 5 months after receiving an mRNA vaccine or 2 months after receiving Johnson and Johnson’s Janssen vaccine. The CDC continues to closely monitor the effectiveness of COVID-19 vaccines to help inform public health efforts.

Leave a Reply

Your email address will not be published.