Groulx said the evolution of a pandemic strain “is a pressing concern,” and has been seen before. In 2009, the H1N1 virus — also called the swine flu — was a “re-assortment of avian influenza, human ...
Pneumonia symptoms can vary based on the cause and severity of the lung infection. For some, it might feel similar to the flu or be barely noticeable. For others, pneumonia can cause severe ...