flu

How Flu Shots Work

How Flu Shots Work

Flu shots work by taking advantage of the body's natural defense system: the immune system. When the vaccine enters the bloodstream, it releases viruses into the blood…If the flu later appears (in an active form), the immune system will recognize it from the vaccine and be able to provide antibody protection. This is how the flu shot works.

What are Flu Symptoms?

What are Flu Symptoms?

The flu symptoms will usually start by exhibiting cold-like symptoms, including but not limited to sore throat, sneezing, and a runny nose. Despite sharing symptoms, flu symptoms occur more suddenly and are more severe than a cold. Other signs of the flu include chills, muscle aches, headaches, fatigue, nausea, a runny or stuffy nose, sore throat, coughing, and a fever.