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Preliminary Estimated Influenza Illnesses, Medical visits, Hospitalizations, and Deaths in the United States - 2021-2022 influenza season | CDC
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Flu cases in Kentucky are on the rise; state has reported three flu deaths, one of them a dual infection of the flu and Covid-19 – Kentucky Health News
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Seasonality of influenza and coseasonality with avian influenza in Bangladesh, 2010–19: a retrospective, time-series analysis - The Lancet Global Health
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