The best time to get your flu shot is in the months of September or October.
It's ideal to get your flu shot at least by the end of October, to build immunity before the flu season peaks, which is usually December and February.
Although it's never too late to get your flu shot even if you get the flu shot later in the season.
Getting your flu shot later is better than never getting a flu shot as the flu shots still remain beneficial through spring.
Young children and older adults may also benefit from early flu shots, like in July and August for longer protection from the flu.
And women that are in their third trimester of pregnancy should get vaccinated in early fall to protect their newborn baby.
September and October are the sweet spot months for flu shots as it ensures your body develops protective antibodies, which takes about 2 weeks, before the flu activity picks up and so it will cover you through the peak months.
Young children need 2 doses of the flu shot and so they should get the first dose of the flu shot as soon as it's available ,as e second flu shot is needed at least 4 weeks later.
Seniors and people with chronic health issues should get the flu shot earlier such as in early fall for maximum protection from the flu throughout the season, as immunity from the flu can wane faster.
And pregnant women in their third trimester should get their flu shot in early fall to pass antibodies to the infant for the first few months of life.
Getting your flu shot in November and December or even later is still a good idea and provides you with protection and reduces the risk of severe illness as the flu can also circulate until as late as May.