The original pandemic virus before it was supplanted by SARS-CoV-2 is still influenza. Over the centuries, influenza pandemics have decimated human populations. One of the worst in history is the 1918 ...
Pneumonia — an infection of one or both of your lungs — can leave you coughing, feverish and feeling miserable. And sometimes, it can land you in the hospital struggling to breathe.
Here’s a look at avian flu. Avian influenza, also called avian flu or bird flu, is an illness that usually affects only birds. There are many different strains of avian flu: 16 H subtypes and 9 N ...