There are four types of influenza virus. Influenza A is the most common, followed by influenza B. Both are highly contagious and have similar symptoms, including fever, chills, and body aches.

This virus was named Influenza B and the inactivated influenza vaccine had to be bivalent to provide protection against both types of influenza viruses (Figure 1). Thus, in 1942, 10,000 doses of ...

The discovery of the influenza B virus in 1940 simultaneously by Francis 1 and Magill 2 greatly facilitated the researches on the epidemiology of this disease. Nevertheless, data concerning the ...

Here’s our weekly round-up of what illnesses are spreading the most in Metro Detroit communities, according to our local ...

The Trump administration has canceled $766 million awarded to drugmaker Moderna Inc. to develop a vaccine against potential pandemic influenza viruses, including H5N1 bird flu.

Brazil said Wednesday it was free of bird flu, paving the way for it to resume chicken exports to China and 20 other ...

In 1942, a bivalent vaccine was produced after the discovery of influenza B. It was later discovered that influenza viruses mutated leading to antigenic changes. Since 1973, the WHO has issued ...