Fast Five Quiz: Influenza

Michael Stuart Bronze, MD

Disclosures

November 06, 2018

In the Northern Hemisphere, all persons aged 6 months or older should receive influenza vaccine annually, by the end of October, if possible. Influenza vaccination should not be delayed to procure a specific vaccine preparation if an appropriate one is already available. Influenza vaccine provides reasonable protection against immunized strains. The vaccination becomes effective 10 to 14 days after administration.

Persons with a history of egg allergy who have experienced only hives after exposure to egg should receive influenza vaccine. Inactivated influenza vaccine or trivalent recombinant influenza vaccine (RIV3) should be used. RIV3 may be used for persons aged 18 years or older who have no other contraindications.

A CDC analysis stressed the importance of vaccinating pregnant women regardless of trimester and prompt treatment with a neuraminidase inhibitor (ie, within 2 days of symptom onset) if influenza occurs during pregnancy. Vaccination of high-risk pregnant patients also provides some protective immunity for newborns and reduces subsequent hospitalizations in the infants.

For more on influenza vaccination, read here.

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