VACCINE IMMUNITY

Surprisingly, the flu vaccine from last year kept protecting people even as a new version of the H3N2 virus started spreading. Public health experts had worried the shot wouldn’t fight off these slightly changed viruses. But in adults, the protection stayed strong, according to new findings. This is

The COVID-19 pandemic has been around for four years. It is important to understand how immunity works. This helps in making good public health decisions. There are three types of immunity to consider. Vaccine-induced immunity is what you get from vaccines. Natural immunity comes from getting s