While respiratory illness season storms on, one virus continues to be the unfortunate leader of them all. Influenza, or the flu, is dominating the other viruses like COVID-19, respiratory syncytial virus (RSV), norovirus, Human metapneumovirus (HMPV) and others, according to Doug Kasper, MD, an infectious disease specialist with OSF HealthCare. He adds that the increase in flu cases is “typical and expected” for this time of year. The strain of flu that is circulating is an Influenza A strain, which is also predicted. Flu at highest rate and climbing "Seasonal influenza rates are increasing each week, per the CDC. That refers to the number of positive tests that are being seen at access sites, like (OSF) PromptCare, urgent care, emergency departments and primary care offices," Dr. Kasper says. "The percentage of tests returning positive for influenza is climbing and it's at its highest level for our season." This comes just days after the Chicago Department of Public
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