Will a COVID-19 vaccine prevent me from getting sick with COVID-19?

No vaccine can offer 100% protection, but the vaccines have shown to be incredibly effective in preventing people from getting seriously sick with COVID-19. Though breakthrough infections are possible (and are expected), evidence shows that fully vaccinated people with a breakthrough infection are less likely to develop serious illness than those who are unvaccinated and get COVID-19.

The more people are vaccinated, and the fewer chances for someone to be exposed to and get COVID-19, the less likely we are to see breakthrough cases. We have seen a small amount of breakthrough cases compared to the millions of people who have been vaccinated.

There is no way to know how COVID-19 will affect you personally. Though many people with COVID-19 only experience a mild illness, others may develop a severe illness, have long-term health effects, or die. Being vaccinated is the most effective way to help end the pandemic and prevent serious, tragic outcomes. 


Last Reviewed: 12/14/21

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1. Are the COVID-19 vaccines safe?
2. Will a COVID-19 vaccine prevent me from getting sick with COVID-19?
3. I lost my vaccine card or need to obtain my vaccination records. What should I do?
4. What should Scott County residents know about booster shots?
5. If I previously had COVID-19 and recovered, do I still need to be vaccinated?
6. I’ve heard that there is pork and gelatin in the COVID-19 vaccines. Is this true?
7. Does the COVID-19 vaccine contain live coronavirus cells?
8. Do I still need to wear a mask and practice social distancing if I'm vaccinated?
9. Will the COVID-19 vaccine be required?
10. How long does it take for the vaccine to be fully effective?
11. Do I have to live and/or work in Scott County to get a vaccine at one of the Scott County clinics?
12. What if I have a weakened immune system or a medical condition? Should I still get a vaccine?