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Do vaccines cause side effects?

Question: 

Do vaccines cause side effects?

Answer: 
Vaccines are among the safest medical products available, but like any medicine or supplement (including vitamins), vaccines can cause side effects. Many people who receive vaccines have no side effects at all. For those who do, the side effects are usually minor and only last a day or two. Serious side effects are very rare. 
 
 
Date last reviewed: 
Friday, Feb 02, 2024