Does Flu Vaccines Have Active Viruses?

Patient: Hi. Can you tell me if the flu shot I get at the doctor’s office is considered “active” or “inactive.”

Doctor: The Flu shot is an inactivated vaccine (containing killed virus). Flu vaccines protect against three of the most commonl y occurring influenza viruses. Some minor side effects that could occur are: soreness, redness, or swelling at the site of the injection, fever and body ache.


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