According to an article posted on February 25, 2019, USA Today states, “While this year’s flu season hasn’t been as brutal as past years, health experts say we still aren’t in the clear — a more severe strain now accounts for nearly half of all new cases, and flu season could linger until May.”
A different strain of the flu virus, a “variant” virus, now accounts for 46.9 percent of cases, the Centers for Disease Control and Prevention says. That could mean an increase in sickness: Even though more people were vaccinated this year compared to last, the current immunization protects better against the main strain, H1N1, and not as well against H3N2 viruses, according to data released Friday.
Here’s what you need to know:
Strains of flu
There are four types of influenza viruses, and then subtypes of those. This flu season, health experts are mostly seeing…