Flu Season Reaching Peak

While the flu season got off to a slow start in the United States last fall, influenza is now circulating in all 50 states and is widespread in 37, health officials report. Of the three confirmed flu viruses -- influenza A H1N1, influenza A H3N2 and influenza B -- the H3N2 strain has predominated, but all three are circulating, according to the [...]