4 doctors weighed in:

Why does the flu shot sometimes make people sick?

4 doctors weighed in
Dr. Heidi Fowler
Psychiatry
3 doctors agree

In brief: Influenza vaccine

Flu shot side effects may include: slight swelling, redness or pain at vaccination site.
If headache, nausea, fever or muscular pain occur they usually resolve within 1 to 2days. You won't get the flu from a flu shot because the virus either contains inactivated virus or doesn't have virus particles in it. The body can reacte to inactivated or recombinant material.Severe side effects are rare

In brief: Influenza vaccine

Flu shot side effects may include: slight swelling, redness or pain at vaccination site.
If headache, nausea, fever or muscular pain occur they usually resolve within 1 to 2days. You won't get the flu from a flu shot because the virus either contains inactivated virus or doesn't have virus particles in it. The body can reacte to inactivated or recombinant material.Severe side effects are rare
Dr. Heidi Fowler
Dr. Heidi Fowler
Thank
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