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Why is Listeria everywhere right now?

Plus, H5N1 is likely spreading more widely to diary workers than we thought; the first clade 1b cluster outside of Africa is in the UK, and COVID is on the rise.

November 8, 2024

Bird Flu News:

  • A study of a 2023 cluster of Cambodian H5N1 cases showed mutations that made it easier for the virus to spread between mammals, including humans, and via airborne transmission. (CIDRAP)
  • Bird flu infections in farmworkers are going undetected. Blood samples from 115 farm workers in MI and CO found recent infection in 8 of them. (STAT)

Health News: 

  • After having fallen for weeks, COVID levels are rising in wastewater across the U.S., with a hotspot in Montana and “high” levels in AR, ME, MN, NE, and WY. (Newsweek)
  • The UK found clade 1b mpox in three household contacts of an earlier imported case, marking the first cluster outside of Africa. (AP)
  • Another Listeria recall, this time in soft cheeses, like brie and camembert, sold in major grocery chains including Aldi. (FDA)
  • FDA is investigating yet another E. coli outbreak, this time type O121:H19. This brings them to 4 active E. coli investigations with 3 different serotypes. (FDA)
  • Over 15% of U.S. adults have diabetes, with 4.5% of adults undiagnosed. (CDC) 
  • Healthcare facilities in the Bay Area reinstated mask mandates for workers as the winter respiratory season begins. (CBS)
  • The cost of mpox shots is deterring the highest-risk people in the U.S. from getting vaccinated. (NY Times)
  • Another tropical storm on the Gulf Coast, Rafael, is threatening IV supplies again. (Becker’s Hospital Review)
  • The USDA will eliminate school lunch fees for low-income families starting in 2027. (LA Times)
  • Recent vaccination is tied to a lower risk of long COVID. (CIDRAP)

Mental Health & Substance Use News:

  • Just a 1% uptick in virtual mental health provider visits has been linked to a 2.5% lower rate of suicide-related events.  (JAMA Network)
  • Work‐related stress is linked to unfavorable cardiovascular health. (AHA)
  • The Trevor Project, a crisis line that supports LGBTQ+ youth, saw a massive 125% increase in calls this week due to the election. (STAT)

If you or someone you know may be considering suicide or need help, call or text 988.

Best Questions:

Why does it seem there is Listeria everywhere right now?

Listeria contamination has been in the news a lot lately, in everything from deli meats to frozen waffles and soft cheese to smoked salmon. A major driver of higher Listeria rates is our reliance on prepackaged foods. As more of our food supply is made up of prepackaged foods that sit in cold storage for a long time, there’s a higher risk for Listeria, which thrives at those low temperatures. Even if there’s just a little bit of bacterial contamination at first, Listeria can happily grow over time in refrigeration. Unfortunately, government oversight hasn’t kept pace. The USDA and FDA cover different aspects of the food supply and are both operating with very limited resources, which can mean that contamination issues slip through the cracks. Back in 2022, USDA inspectors warned of an “imminent threat” posed by the Virginia Boar’s Head plant at the center of their massive Listeria outbreak, but nothing was done until after 10 people had died. One thing to note is that recalls don’t always mean that there’s an outbreak. Some of the biggest recent recalls, like TreeHouse brand frozen waffles and the 11.7 billion pound BrucePac ready-to-eat meat recall, were found via routine testing, and there haven’t actually been any reports of illnesses. To help prevent a Listeria contamination, focus on First In, First Out (FIFO) to make sure your cold products aren’t sitting for too long. 

Sources: Eater, The Hill, FDA, USDA

Should we be worried that fewer employees are taking flu shots than before the pandemic?

Short answer: yes. Flu shots save employers money and reduce staffing shortages during the busy holiday season, so lower uptake of flu shots can leave employers hurting. Flu costs businesses a lot of money, from reduced productivity to paid sick days to direct health insurance costs. Models show that each employee who gets vaccinated for flu can save their employer anywhere from $39 to $1494. Flu shots are more popular than COVID shots - a recent survey showed that 56% of adults plan to get the flu jab this year, compared to just 43% who plan to get a COVID shot. A full 37% say they’ve gotten vaccines in the past but don’t plan to get any this year. These might be folks who are in what we call the “moveable middle,” who might be influenced by convenience, like a free, on-site flu shot at their workplace or reminders about free and easy walk-ins at a local pharmacy nearby. 

Sources: CIDRAP, AJPM

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