A 18-year-old female asked:
how long does the flu last for? at what point should you seek medical attention?
1 doctor answer
Dr. Charles Foulks answered
45 years experience Nephrology and Dialysis
One season: The influenza vaccine is developed against influenza strains that are thought to be the one(s) most likely to cause an influenza epidemic. If the "guess" is correct then the vaccine might protect >60%. If not, then protection might not be that high. The more people who receive vaccine increases herd immunity making it less likely that there will be an epidemic. Also decreases febrile colds by 50%.
Answered on Oct 15, 2013
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