Even if the hopeful assessment by the U.S. Centers for Disease Control and Prevention bears out, there will still be another 11 weeks to 13 weeks of flu circulating across the country. “In general, we see things peaking right about now, but that means there is still a whole lot more flu to go,” Jernigan said. “In addition, there are other strains of influenza still to show up that could be a major cause of disease.”
That may already be happening. The CDC is starting to see infections caused by the H1N1 strain of the virus in states grappling with high levels of the H3N2 strain, the predominant version this season. In addition, Jernigan said yet another type of flu, caused by the influenza B viruses, is still expected to show up later in the season.