Flu Vaccine


The seasonal flu virus (or influenza) is very contagious. At Mercy, we know the best protection comes from a yearly flu vaccination. Flu season typically runs from October to May with new strains of the virus developing each year. Mercy makes it easy to prevent the spread of seasonal flu because the flu vaccine is available at most Mercy primary care offices, pharmacies and urgent or convenient care centers.

Who Should Get a Flu Shot?

Your Mercy primary care provider can review your individual health situation and recommend the best course of treatment to help you stay healthy throughout flu season.  

The traditional flu vaccine injection is given to:

  • Children and infants as young as 6 months old - learn more about pediatric flu shots 
  • Women who are pregnant - given during the first trimester to protect both mother and baby
  • Adults who are currently feeling healthy (without fever or weakened immune system)

Those with a history of severe allergy to chicken eggs, a severe reaction to a previous flu shot or a diagnosis of Guillain-Barre Syndrome within 6 weeks of receiving a flu vaccination should not take it. Talk to your Mercy primary care provider about other options available to you.

Flu Shot Effectiveness

It can take a week or two for the vaccine to become effective, so getting a flu shot early in fall offers maximum protection. The level of protection can vary from year to year based on how good a match the vaccine is to the current flu viruses going around. The CDC (Centers for Disease Control) recommends annual flu immunization as the best way to reduce the risk of getting and spreading the flu virus which reduces hospitalizations and flu related deaths.     

Mercy makes flu Immunization easy with:

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