Can you still get flu with vaccine and test positive?

Yes, it is possible to still get the flu even if you have been vaccinated and test positive for the influenza virus. However, the vaccine can significantly reduce the risk of getting the flu and its severity if you do get it.

The flu vaccine works by stimulating your immune system to produce antibodies against the influenza virus. These antibodies help protect you from getting sick if you come into contact with the virus. However, the vaccine is not 100% effective, and there are a few reasons why you may still get the flu even if you have been vaccinated:

* The vaccine may not have been a good match for the circulating flu strains. The flu vaccine is designed to protect against the most common flu strains that are expected to circulate during the flu season. However, sometimes new strains of the flu virus emerge that are not covered by the vaccine.

* You may have been exposed to the flu virus before you were fully vaccinated. It takes about two weeks for the flu vaccine to provide full protection. If you were exposed to the flu virus before you were fully vaccinated, you may still get sick.

* You may have a weakened immune system. People with weakened immune systems are more likely to get the flu even if they have been vaccinated. This includes people with chronic illnesses, such as heart disease, lung disease, or cancer, as well as people who are taking certain medications, such as chemotherapy or steroids.

If you think you may have the flu, even if you have been vaccinated, it is important to see your doctor. Your doctor can test you for the flu and recommend treatment.