Norovirus cases on the rise in the US. What you need to know

(NEW YORK) — With the recent pick of Robert F. Kennedy Jr. to lead the Department of Health and Human Services, the environmental attorney’s views on vaccines have been thrust back into the spotlight.

Kennedy has been a prominent vaccine skeptic, arguing that more research of vaccines is needed, although he has claimed in interviews that he has “never been anti-vaccine.”

Vaccine researchers tell ABC News that his recent comments don’t align with his past campaigns and that, if confirmed, he could convince vaccine-hesitant parents to not vaccinate their children.

“He’s really not a vaccine skeptic; I’m a vaccine skeptic,” Dr. Paul Offit, director of the Vaccine Education Center, an attending physician in the division of infectious diseases at Children’s Hospital of Philadelphia and a member of the Food and Drug Administration’s Vaccines and Related Biological Products Advisory Committee, told ABC News.

“Everybody who sits around the table at the FDA vaccine advisory committee is a vaccine skeptic, right? Show us the data, prove that this vaccine is safe, prove that it’s effective, because then and only then will we authorize it, or recommend authorization or licensure,” he said.

Offit argued that Kennedy is a “vaccine cynic,” adding, “He thinks that we’re not getting the right information, that there’s an unholy alliance between the pharmaceutical industry and the FDA with the [Centers for Disease Control and Prevention] to hide the real data, and he’s going to find the real data, which is utter nonsense.”

Claims that vaccines cause autism

Kennedy has previously claimed that the measles, mumps and rubella (MMR) vaccine — a myth that was born out of a now-debunked paper from the U.K. in 1998.

The fraudulent paper has since been discredited by health experts, retracted from the journal in which it was published, and its primary author, Andrew Wakefield, lost his medical license. More than a dozen high-quality studies have since found no evidence of a link between childhood vaccines and autism.

Dr. Peter Hotez, co-director of the Texas Children’s Hospital Center for Vaccine Development and dean of the National School of Tropical Medicine at Baylor College of Medicine, said he’s worried that COVID-19 vaccine hesitancy has spilled over into hesitancy towards childhood vaccines.

There have been more measles outbreaks this year than last year and a five-fold increase in whooping cough cases this year from the year before, according to CDC data, which Hotez says is a sign that more parents may be increasingly vaccine-hesitant.

According to the CDC, there have been a total of 277 measles cases reported in 30 states in 2024 — more than four times the amount last year — with 16 outbreaks this year compared to four outbreaks in 2023. An estimated 96% of measles cases this year were not fully vaccinated. Additionally, whooping cough cases are at the highest levels this year since 2014, according to CDC data.

This comes as vaccinations among kindergarteners dipped in the 2023-2024 school year for the fourth year in a row – failing to meet the 95% threshold goal aimed to prevent a single infection from sparking an outbreak. The last time that threshold was met was pre-pandemic, during the 2019-2020 school year.

“Now you put someone like Robert F. Kennedy Jr., the nation’s most prominent, well-known anti-vaccine activist at the top of the food chain, at the top of Health and Human Services,” Hotez said. “I don’t see how these things improve any. If anything, they could start to decline even further. …So, I worry about further erosion in the number of kids getting vaccinated in the U.S.”

Claims about the COVID-19 vaccine

Kennedy also spread vaccine misinformation during the COVID-19 pandemic including claims that Dr. Anthony Fauci, former director of the National Institute of Allergy and Infectious Diseases, and the Bill & Melinda Gates Foundation were trying to profit off a COVID-19 vaccine.

During a December 2021 Louisiana House of Representatives meeting discussing a proposal to require schoolchildren to receive the COVID-19 vaccine, Kennedy falsely called the vaccine the “deadliest vaccine ever made.”

Health officials say COVID-19 vaccines are safe and effective following clinical trials that involved tens of thousands of people, and have since helped save millions of lives.

Offit says he is worried that, as the head of the HHS, Kennedy would help select directors of the CDC, FDA and the National Institutes of Health who are not qualified, and could similarly espouse vaccine-skeptic views.

“My worry is that he is not going to pick technically competent people,” he said. “My worry is he’s going to have a role in selecting ideologues who are not well-educated about infectious diseases or vaccines, and maybe who lack government experience as well.”

Both Offit and Hotez said it will be important over the next four years for doctors to have conversations with vaccine-hesitant parents to educate them on the importance of vaccinating their children in case they are swayed by vaccine-skeptic rhetoric from Kennedy.

Offit said he is already getting emails from pediatricians about parents who are hesitant to vaccinate their children because of Kennedy’s past comments.

“Over the last few days, I’ve gotten emails from pediatricians, one particularly in Connecticut that comes to mind, where they’re saying, ‘Parents are coming in, and they’re saying they don’t want to get vaccines, in part because of what [Kennedy] said. What should we do?'” Offit said. “So, I think that’s where the rubber meets the road. It’s certainly a lot more work for clinicians than it used to be.”

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(NEW YORK) — The Centers for Disease Control and Prevention (CDC) has confirmed the first case of severe bird flu in the United States.

The federal health agency said Wednesday that the patient has been hospitalized in Louisiana. No identifying details about the patient were made available.

Genomic data showed the Louisiana patient was infected with a version of the virus recently found to be spreading in wild birds and poultry in the U.S., as well as found in some human cases in Canada and Washington state, according to the CDC.

This is different than the version of the virus found to be spreading in dairy cows and some poultry populations in the U.S.

The Louisiana patient was exposed to sick and dead birds in backyard flocks, although an investigation into the source of the illness is ongoing, the CDC said. This is the first case of human bird flu in the U.S. linked to exposure to backyard flock.

There have been 61 reported human cases of bird flu reported in the U.S. since April, according to CDC data.

Almost all confirmed cases have had direct contact with infected cattle or infected livestock. Prior to the case confirmed in the Louisiana patient, cases had been mild and patients had all recovered after receiving antiviral medication, according to the CDC and state health officials. One previous case in Missouri was hospitalized, but health officials pointed to other health conditions aside from bird flu infection involved in the patient’s admission to the hospital.

Signs and symptoms of infection in humans often include sore throat, cough, fever, runny or stuffy nose, headache, muscle or body aches, fatigue and shortness of breath, the CDC says. Less common symptoms include nausea, vomiting, diarrhea and seizures.

Infections can range from no symptoms or mild illness, such as flu-like symptoms, to more severe illness, such as pneumonia that could require hospitalizations, the CDC says.

“The best way to prevent bird flu is to avoid exposure whenever possible. Infected birds shed avian influenza A viruses in their saliva, mucous and feces,” the CDC wrote Wednesday in a press release. “Other infected animals may shed avian influenza A viruses in respiratory secretions and other bodily fluids (e.g., in unpasteurized cow milk or ‘raw milk’).”

The CDC said no person-to-person transmission has been detected and the risk to the general public is low. However, those who work with birds, poultry or cows — or have recreational exposure to them — are at higher risk and should take precautions recommended by the health agency.

The U.S. Department of Agriculture issued a new federal order last week that raw milk samples nationwide will be collected and shared with the department in order to test for bird flu.

The decision came after the bird flu virus was found in samples of raw milk from a California farm, which issued a recall of all of its raw milk products earlier this week. The farm was also placed under quarantine by state health officials.

ABC News’ Youri Benadjaoud contributed to this report.

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(NEW YORK) — The deadly E. coli outbreak linked to McDonald’s Quarter Pounders was declared over on Tuesday by the Centers for Disease Control and Prevention.

In total, 104 people reported falling ill across 14 states with about one-third of them being hospitalized, according to the CDC.

The true number of people who got sick was likely much higher because many people recover from E. coli without medical care and are never tested, the CDC noted.

Americans between ages 1 and 88 were affected in the outbreak, according to he CDC. Colorado had the greatest number of cases with at least 30 people falling ill. The state also reported one death.

An outbreak notice was first released by the CDC in late October. Evidence from health officials’ investigation at the time showed that slivered onions served on Quarter Pounders were a likely source of contamination.

Nearly all the people who fell ill and were interviewed by health officials reported eating at McDonald’s and the overwhelming majority remembered eating a menu item that contained the fresh, slivered onions, according to the CDC.

The fast food chain’s distributor of the onions, Taylor Farms, initiated a voluntary recall of the onions in late October. McDonald’s stopped using the ingredient and removed the Quarter Pounder entirely off the menu in a dozen states.

The latest reported illness was on Oct 21. All the confirmed cases occurred before the onions were recalled and the ingredient was taken off of the McDonald’s menu at some locations, according to health officials.

The fast-food chain is no longer serving the recalled onions and there “does not appear to be a continued food safety concern related to this outbreak,” the U.S. Food and Drug Administration said on Tuesday. The agency also noted that its investigation is now closed.

McDonald’s North America chief Impact officer Michael Gonda and chief supply chain officer Cesar Piña shared a message on Tuesday, saying the announcements from the CDC and FDA provide “certainty and validation” that the outbreak is over and the risk to the public has remained low since late October.

While the issue had been fully contained — and any contaminated product associated with this issue had been removed from our supply chain as of Oct. 22, 2024 — it can now be classified as “closed” and remediated,” the message read, in part.

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