Coronavirus (COVID-19) Information
COVID-19 Vaccine Information
According to the Missouri Department of Health and Human Services, both the Pfizer and Moderna vaccines use messenger RNA (mRNA) to encourage your cells to initiate an immune response to SARS-CoV-2, which is the virus that causes COVID-19. Janssen’s vaccine uses a vector (carrier) to provide our cells DNA instructions on how to create COVID-19 spike proteins that will initiate an immune response. The vector used in Janssen’s vaccine is a harmless adenovirus (like the common cold) that has been modified so it won’t be able to replicate or cause illness.
COVID-19 vaccination will help keep you from getting COVID-19
According to the Centers for Disease Control and Prevention (CDC), all COVID-19 vaccines currently available in the United States have been shown to be safe and effective at preventing COVID-19. Learn more about the different COVID-19 vaccines.
All COVID-19 vaccines that are in development are being carefully evaluated in clinical trials and will be authorized or approved only if they make it substantially less likely you will get COVID-19. Learn more about how federal partners are ensuring COVID-19 vaccines work.
Based on what we know about vaccines for other diseases and early data from clinical trials, experts believe that getting a COVID-19 vaccine also helps keep you from getting seriously ill even if you do get COVID-19.
Getting vaccinated yourself may also protect people around you, particularly people at increased risk for severe illness from COVID-19.
Experts continue to conduct studies to learn more about how COVID-19 vaccination may reduce spread of the virus that causes COVID-19.