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Influenza vaccines, colloquially known as flu shots, are vaccines that protect against infection by influenza viruses. [13] [14] New versions of the vaccines are developed twice a year, as the influenza virus rapidly changes. [13] While their effectiveness varies from year to year, most provide modest to high protection against influenza.
NYC bridge stuck open due to high heat. A searing heat wave has gripped large parts of the US, with record daily high temperatures in Oregon suspected to have caused four deaths in the Portland ...
The earliest storm to develop into a Category 5 hurricane in the Atlantic, Beryl caused at least 11 deaths as it passed through the Caribbean on its way to Texas.
