Flu Vaccine Effectiveness 2020 Topic Guide

Flu Vaccine Flu Vaccine: Flu vaccines may be composed of weakened live flu viruses or killed viruses that protect a person from developing influenza once administered. Reactions to the seasonal flu and H1N1 flu nasal-spray vaccines and shots include headache, nasal congestion, low-grade fever, sore throat, and muscle cramps.

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Flu Vaccine Topic Guide - Medications and Vitamins


zanamivir Zanamivir

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