The number of flu cases across the country is on the rise, following a global trend that is now reaching the U.S., say health care professionals. Britain, Australia and Japan have already reported spikes, in what has turned out to be an early flu season, according to The New York Times. Some of the areas seeing the biggest spikes so far include New York City, Denver and New Orleans, according to The Times and the Centers for Disease Control and Prevention’s tracker. The dominant strain of the flu virus circulating this season is H3N2 subclade K – a variant of...