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How long is the flu contagious?Many factors affect the infectious period of seasonal influenza, commonly called "the flu," but there are some good rules of thumb for when it's safe to return to work or school.
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Flu shots have changed this year — here's whyUnlike past flu shots, flu vaccines for the 2024-2025 season don't contain the "Yamagata lineage" of influenza viruses because evidence suggests that type of flu no longer exists.
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Source of person's recent bird flu case remains a mystery — and experts say that's concerningThe latest human case of bird flu in the U.S. occurred in a patient with no reported exposure to affected animals, sparking questions over whether the virus is spreading between people. Experts say that's unlikely but argue the case raises other concerns.
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At-home flu vaccine approved by FDA — what to knowPeople could previously get the nasal spray flu vaccine, called FluMist, from a health care provider, but now they can administer it themselves.
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H5N1: What to know about the bird flu cases in cows, goats and peopleBird flu in cows and goats has raised alarm in the U.S. To date, four people are thought to have caught the virus from cattle, but the risk to the general public is low.
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4th person catches bird flu from cows, this time in ColoradoA fourth person in the U.S. has caught bird flu after working with infected cows on a farm.
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H5N1 bird flu can remain infectious in raw milk for at least an hour, study findsScientists found that contaminated milking equipment can harbor the H5N1 virus for more than an hour, increasing the risk of dairy farmers getting infected.
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1st-known human case of H5N2 bird flu remains under investigationA man in Mexico died after catching the world's first laboratory-confirmed case of H5N2 bird flu in humans. However, authorities think he likely died of existing conditions, rather than the infection itself.
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Latest human H5N1 bird flu case in US is 1st to cause respiratory symptomsThis infection, tied to an ongoing outbreak in cows, is the first in the U.S. to cause respiratory symptoms, but not the first H5N1 case in the world to do so.
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