Every winter, millions of people catch the flu. Most cases come from two main culprits: influenza A and influenza B. While both cause fever, body aches, and fatigue, they behave differently in how they spread and mutate.
Understanding the difference between flu a and b can help you spot symptoms early and seek proper care. Flu A often hits harder. It infects both humans and animals, and it mutates quickly, which makes it responsible for major seasonal outbreaks and pandemics. Flu B only spreads among humans. It changes more slowly, but it can still make children and older adults very sick.
Do your symptoms tell you which strain you have? Usually, no. Only a rapid lab test can confirm whether you have type A or type B. Fortunately, standard antiviral medications and seasonal flu vaccines defend against both strains.
In the video below, health experts break down the key differences between these two viruses. You will learn how each virus spreads, common myths to ignore, and the best steps to recover quickly. Watch now to stay informed and protect your household this season.