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Could irradiated food stop outbreaks?

Why so many Salmonella recalls? Plus, properly cooked burgers pose no bird flu risk...

May 17, 2024

Bird Flu News:

  • Properly cooked hamburgers pose no bird flu risk, the USDA said in a briefing this week. (Reuters)
  • The USDA confirmed that 3 more herds have H5N1 infections in Michigan and Idaho, bringing the total to 49 herds so far. (USDA)
  • Raw milk drinkers aren’t deterred, and buying it is easy despite bird flu warnings and an interstate ban. (STAT)
  • Tests on Canadian milk were negative for H5N1 fragments, indicating that there may be less spread in Canadian dairy herds than here in the U.S. (CIDRAP)

Health News:

  • A third of US food outbreaks and 3500 illnesses can be linked to food that was eligible to undergo “pathogen-neutralizing irradiation” but didn’t. (CIDRAP)
  • A quick, well-coordinated response with mass vaccination helped prevent the Chicago migrant shelter measles incident from becoming a massive and prolonged outbreak. (MMWR)
  • Over 200 million seniors will face extreme heat risk in the next two decades. (NPR)
  • COVID shots will no longer be free for uninsured people after August. (CDC)
  • CDC warned of a resurgence in mpox and is urging vaccination. (NY Times)

Mental Health & Substance Use News:

  • US overdose deaths dropped for the first time since 2018. (AP)
  • Tribal nations are investing opioid settlement funds into traditional healing to treat addiction. (KFF Health News)
  • Cheating on workplace drug tests is at a 30-year high. (WSJ)
  • Walgreens will offer a cheaper store-brand naloxone, the opioid overdose reversal drug. (The Hill)

If you or someone you know may be considering suicide or need help, call 988 or message the Crisis Text Line by texting HOME to 741741.

Best Questions:

What’s going on with all these recalls for Salmonella?

There are a lot of recalls for products potentially contaminated with Salmonella in the first half of May. Just in the past two weeks, we’ve seen recalls on organic chia seeds, yogurt-covered pretzels, cream cheese, and a variety of white chocolate candies, all due to possible Salmonella contamination (and that doesn’t even include last month’s widespread organic basil recall). It’s unlikely that these Salmonella incidents are linked to a common source, but instead more to do with the production process and with the renewed focus of the FDA. Last year was the highest for recalls since before the pandemic, and bacterial contamination made up a quarter of total recalls in 2023, so we’re on track to see that trend continue. The good news is that many of these are voluntary recalls before people actually become sick, which may be contributing to the sheer number but is a win for public health.

Sources: FDA, CDC, Axios, Time

What does it mean that nearly a third of foodborne illness is linked to irradiation-eligible foods?

CDC’s Emerging Infectious Disease journal released a recent report studying 482 outbreaks. Of those, 155 (or 32.2%) were linked to a food that was “irradiation-eligible” but not actually irradiated. Food irradiation exposes food to ionizing electromagnetic radiation (gamma or x-rays, basically) after it’s already processed and even packaged, which destroys the DNA of harmful pathogens like E. coli, Salmonella, Campylobacter, and Listeria, among others. Irradiation has been approved by the FDA for foods including meat, poultry, and eggs, the three food items that made up most of those 155 outbreaks. But it’s not widely adopted in the U.S., in part because of the higher cost of sending food out to an irradiation facility and in part because of the idea that consumers don’t want to eat irradiated food. The authors cite a preprint study that suggests that education can change attitudes about irradiated foods, which may be an important first step. CDC emphasizes that irradiation doesn’t make food radioactive, nor does it change its texture or appearance, and it has been approved for over 30 years. While not the only or even best means to protect against foodborne illness, irradiation is one tool in the toolbox, and foodservice establishments can use this information to make informed decisions about food sourcing.

Sources: CIDRAP, CDC

Best Read:

What's worse for disease spread: animal loss, climate change or urbanization? - NPR

Main Image Source: CDC