Vaccines teach your immune system how to recognize and fight specific viruses or bacteria without you getting sick from the actual disease.
Vaccines protect people from serious, sometimes deadly diseases. They’ve dramatically reduced illnesses like measles, polio, and whooping cough.
Yes. Before approval, vaccines go through rigorous clinical trials to ensure safety and effectiveness. After approval, they’re continuously monitored. Serious side effects are very rare.
No. Most vaccines use killed or weakened pieces of viruses that cannot cause the actual disease.
No vaccine is 100% effective. But people who are vaccinated are much less likely to get seriously ill, hospitalized or die if they do catch the disease.
No. Vaccines help strengthen immunity by training the immune system without causing the disease, and they don’t make it weaker.
No. A child’s immune system handles many germs every day—vaccines represent a tiny fraction of that exposure.
Most side effects are mild—like pain at the shot site, low fever or fatigue—and go away in a few days. Serious reactions are very rare.
No. Extensive scientific studies have found no link between vaccines and autism.
Yes. Many vaccines, including COVID-19 vaccines, are recommended in pregnancy because protection can benefit both the parent and baby.
Yes. It’s safe to receive multiple vaccines at the same visit unless your healthcare provider advises otherwise.
Yes. Natural immunity varies and may fade—vaccination still boosts protection, lowers risk of severe disease, and strengthens community immunity.
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