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![Close-up of a person getting a vaccine in their upper right arm.](https://cdn.mos.cms.futurecdn.net/ZQFCXehpLVVfHNgHdFkVUg-320-80.jpg)
Flu shots have changed this year — here's why
By Emily Cooke published
Unlike 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.
![Friesian Piedmontese Bovine cows inside the Vanzetti Holstein farm during the Piedmontese Cattle Breeders Meet on February 29, 2024 in Candiolo, near Turin, Italy.](https://cdn.mos.cms.futurecdn.net/NGWwYaKVkJrj4iBCn3wXYa-320-80.jpg)
Source of person's recent bird flu case remains a mystery — and experts say that's concerning
By Kamal Nahas last updated
The 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.
![Female patient is shown sat on a white chair at the doctor's office. She has her hands crossed on top of her lap and is looking at a female doctor who appears to be explaining something to her.](https://cdn.mos.cms.futurecdn.net/yjRtXkVatVvx5XeXjzFYRP-320-80.jpg)
New self-swab HPV test is an alternative to Pap smears. Here's how it works.
By Julie Goldenberg published
There's a new way to screen for high-risk HPV, a viral infection that can lead to cervical cancer. This alternative method of collecting samples for cervical cancer screening doesn't require a speculum.
![A mosquito biting into skin](https://cdn.mos.cms.futurecdn.net/5qENCPiGAKSW7s4ukPjrEc-320-80.jpg)
New York resident dies of eastern equine encephalitis — what is it?
By Nicoletta Lanese last updated
Recent cases of a viral illness nicknamed "triple E" have occurred in New England. Here's what you should know about the disease.
![Girl has her eyes shut as a healthcare provider sprays a nasal vaccine up her right nostril](https://cdn.mos.cms.futurecdn.net/W9yraGpwkUQqdToSyRqBJU-320-80.jpg)
At-home flu vaccine approved by FDA — what to know
By Emily Cooke published
People could previously get the nasal spray flu vaccine, called FluMist, from a health care provider, but now they can administer it themselves.
![A young girl blows her nose with a cold while a woman looks after her](https://cdn.mos.cms.futurecdn.net/mGJTnCBAhaCbcbuoept8Hi-320-80.jpg)
Saline nose drops may shorten colds and cut transmission, trial hints
By Michael Schubert published
Giving children saline nose drops at the start of a cold may shorten its duration and reduce the likelihood that they will pass the illness to others, a study hints. But it has some caveats.
![High-resolution microscope image of bacteria of different shapes and sizes on a a light blue/grey background. Some bacteria look more like blobs, which are either red or purple, while others look like long rods that are turquoise in color.](https://cdn.mos.cms.futurecdn.net/GY7dagnzaunv8PfgJZymRi-320-80.jpg)
Scientists invent tool to see how 'healthy' your gut microbiome is — does it work?
By Emily Cooke published
A new tool can reveal whether someone has a "healthy" gut microbiome with a simple score — but how does it work?
![Close-up image of a hand holding a strip of Tamiflu pills in front of a packet of them. The pills, which are half yellow and half white, can be seen in the pill strip. The pill packet behind is white and has branding on it.](https://cdn.mos.cms.futurecdn.net/PQDuvAUWKqVf7LpAbsMTRD-320-80.jpg)
Hospitalized patients with flu need Tamiflu the day they're admitted, CDC says
By Emily Cooke published
New research suggests that hospitalized patients with flu who start taking Tamiflu the day they are admitted are 40% less likely to die within a month than those treated just days later.
![a close up on a brown tick from below; the tick is very round in shape and has curled legs around its body.](https://cdn.mos.cms.futurecdn.net/BqvtwpzqNKTRvmw2YNF3nj-320-80.jpg)
New tick-borne virus discovered in China can affect the brain, scientists report
By Nicoletta Lanese published
Scientists present evidence of a newly discovered tick-borne virus that can infect humans and potentially invade the brain, in some cases.
![Brown and white cow with a tag on their right ear looks up at the camera. The cow appears to be among black cows. The tag on it's ear reads "51"](https://cdn.mos.cms.futurecdn.net/7BdkP4wnawtLv3AcdGmSa6-320-80.jpg)
Anthrax has killed over 50 animals in Wyoming — what's the risk to people?
By Emily Cooke published
At least 50 animals, including cattle and one moose, in Wyoming have died during a recent outbreak of anthrax. However, officials say the current risk to humans is small.
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