Every year, the influenza vaccine is modified to best fight new strands of the virus in the next flu season. Recently, the World Health Organization announced the strains that would make up the flu vaccine in 2017-2018.
An annual vaccine for influenza is recommended for all people over the age of six months in order to prevent the illness. The flu shot is highly recommended for anyone over the age of 65. This age group is often at a higher risk of complications with the flu. Each year, the vaccine’s composition is changed to fit updated strains of the influenza virus.