It’s possible you’ll not be capable to forestall catching a chilly or the flu, however you’ll be able to significantly cut back your possibilities and reduce the probability that you will have a extreme case when you do get sick. The nicely established recommendation meant to maintain you wholesome additionally protects others by lowering the unfold of those ailments.
Get a Flu Shot
“The only finest technique to cut back the chance of seasonal flu and its probably critical issues is to get vaccinated annually,” in line with the CDC.
Many well being professionals, together with infectious illness specialist Steven Gordon, MD, and infectious illness scientific pharmacist Kaitlyn Rivard, PharmD, each on the Cleveland Clinic, say the finest time to get vaccinated is in September or October, when new annual variations of the vaccines usually grow to be obtainable in North America. However don’t fret when you missed that window, as a result of the second finest time is “now.”
Elena Diskin and Lisa Sollot, two respiratory specialists on the Virginia Division of Well being, and Christy Grey, the director of the Division of Immunization there, all agree that there is nonetheless time to get the annual flu vaccine. “The season runs from October by way of the top of April,” they wrote in an electronic mail, including “we usually see essentially the most flu exercise in January and February.” So sure, it is nonetheless worthwhile to get a flu shot if you have not had one but.
Flu Vaccines Can not Give You the Flu
Whereas it is potential to really feel unwell after getting a flu vaccine, you can not get the flu from it. In public well being details about flu vaccines final up to date in 2024, the CDC confirms that, “Flu vaccines can not trigger flu sickness. Flu vaccines given with a needle (i.e., flu photographs) are made with both inactivated (killed) viruses, or with solely a single protein from an influenza virus.” The nasal spray vaccine, which is for folks between the ages of two and 49, and which you might be able to administer at dwelling, “incorporates dwell viruses which are attenuated (weakened) in order that they won’t trigger sickness,” in line with the CDC.
After receiving a vaccine, it takes as much as two weeks for it to have its full impact, nonetheless. Which means when you had been uncovered to the flu virus both proper earlier than or as much as two weeks after receiving the vaccine, you possibly can get sick, nevertheless it would not be because of the vaccine.
Flu Vaccines Are Extremely Efficient at Stopping Extreme Sickness
The flu vaccine modifications yearly primarily based on which strains of the virus specialists assume shall be prevalent, and whereas it is not foolproof, it’s extremely efficient at stopping extreme sickness. Within the 2024-2025 season, for instance, flu vaccines had been 56 % efficient, which is greater than it had been in virtually 15 years.
“Vaccine effectiveness is measured by evaluating the frequency of well being outcomes (e.g., symptomatic sickness, hospitalization, demise) in vaccinated and unvaccinated folks in the actual world,” say Diskin, Solot, and Grey on the Virginia Division of Well being. Effectiveness is totally different from efficacy, which measures outcomes in managed trials.
“In plain language, [vaccine effectiveness] describes how a lot much less probably a vaccinated individual is to get sick in comparison with an unvaccinated individual, primarily based on real-world knowledge,” says Sai Paritala, an assistant professor on the College of Nebraska Medical Heart School of Public Well being and former epidemiologist.
