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Why are flu cases higher this year compared to last?
Flu activity is already surpassing last winter, with over 11 million illnesses reported so far. The main reason is the dominance of the H3N2 strain, especially the new subclade K variant, which has mutations that may make it more transmissible. Additionally, lower immunity levels from last season and changes in the virus itself contribute to the higher case numbers.
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What is the new H3N2 subclade K variant and how does it affect vaccines?
The H3N2 subclade K variant is a recent mutation of the flu virus that has shown genetic changes. These mutations can reduce the effectiveness of the current flu vaccine, which was formulated based on earlier strains. While the vaccine may not fully prevent infection, it still offers some protection and can lessen the severity of illness.
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Should I get a flu shot this season?
Yes, health experts strongly recommend getting a flu shot this season. Despite the mismatch with the new subclade K variant, the vaccine remains the best way to reduce your risk of severe illness, hospitalization, and death. It also helps protect vulnerable populations and reduces the overall spread of the virus.
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How are COVID-19 cases trending alongside the flu?
COVID-19 cases are also rising but remain less prevalent compared to the flu. The overlap of these viruses can strain healthcare systems, so staying vigilant, practicing good hygiene, and getting vaccinated against both illnesses are important steps to stay safe this season.
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What can I do to protect myself from the flu this season?
Besides getting vaccinated, you should practice good hygiene like frequent handwashing, avoiding close contact with sick people, and wearing masks in crowded places. Maintaining a healthy lifestyle, including proper sleep and nutrition, can also boost your immune system and help you fight off infections.