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photo of three black and white diary cows with tags on their ears looking through a gate

In world 1st, dairy cows in Texas and Kansas test positive for H5N1 bird flu

By Sascha Pare published

Unpasteurized milk samples and throat and nose swabs from cows on U.S. dairy farms have tested positive for bird flu, marking the second known cases in ruminants in the U.S.

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close up on an older woman's arm as male doctor places a bandage on it, as if she's just received a vaccine

A branch of the flu family tree has died and won't be included in future US vaccines

By Nicoletta Lanese published

Advisers to the FDA say a type of flu virus known as the "Yamagata lineage" can be dropped from next year's vaccines.

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frozen turkeys wrapped and on display in a grocery store freezer

Having trouble finding a 20-pound turkey? Blame bird flu.

By Nicoletta Lanese published

A highly pathogenic strain of bird flu has limited the nation's supply of large turkeys ahead of Thanksgiving.

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Mother checking temperature of her sick son who has thermometer in his mouth

The flu (influenza): Causes, symptoms and treatment

By Rachael Rettner last updated

The flu (short for influenza) is a respiratory virus that affects the throat, nose, bronchi and, sometimes, the lungs.

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A man receiving a flu shot from a doctor

When should I get my flu shot?

By Rachael Rettner published

Fall has arrived, and with it the annual call to get your flu shot. But when's the best time to get the jab?

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An illustration of the influenza virus (giant blue sphere) surrounded by human antibodies (small y-shaped orange shapes).

Which flu shot should I get?

By Rachael Rettner published

With so many different types of flu vaccines available for the 2022-2023 season, which flu shot is right for you?

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Here's a look at the science of flu shots. Shown here, a vial and syringe.

Flu shot facts and side effects

By Rachael Rettner, Nicoletta Lanese published

The seasonal flu shot is a yearly vaccine that protects against the flu, or influenza. Here's what you need to know about it.

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Beds with patients in an emergency hospital in Camp Funston, Kansas, in the midst of the Spanish flu pandemic.

1918 influenza: The deadliest pandemic in history

By All About History last updated

Over 100 years ago, a killer strain of the influenza virus infected over a third of the world's population.

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An illustration of the influenza virus (giant blue sphere) surrounded by human antibodies (small y-shaped orange shapes).

Could we ever eradicate the flu?

By Isobel Whitcomb published

We have influenza vaccines, but is it possible to eradicate the flu?

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During the 1918 influenza pandemic, warehouses were converted to keep infected people quarantined.

1918 flu mutated to become deadlier in later waves, century-old lungs reveal

By Tom Metcalfe last updated

The influenza virus that caused the 1918 pandemic mutated into variants, much like the novel coronavirus has done in the current pandemic, century-old virus samples reveal.

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