E. Coli in Chicken Linked to Urinary Tract Infections

WEDNESDAY, Feb. 15 (HealthDay News) — Scientists have long
believed that urinary tract infections are typically caused by a person’s
own E. coli bacteria, but a new Canadian study suggests the bacteria may
more often than not come from chickens.

Yes, chickens.

As many as 85 percent of urinary tract infections are caused by E.
coli, according to the report in the March issue of Emerging Infectious
Diseases
, a publication of the U.S. Centers for Disease Control and
Prevention.

Researchers compared the genetic fingerprints of E. coli from these
infections to that of E. coli from chicken, beef and pork. And they found
a match: chicken. What’s more, they report that the infections probably
came directly from the chickens, not from human contamination during food
processing.

“Chicken may be a reservoir for the E. coli that cause infections like
urinary tract infections,” said study author Amee Manges, who is with the
department of epidemiology, biostatistics and occupational health at
McGill University in Montreal.

“We are also concerned about the selection and amplification of
drug-resistant E. coli on the farms because of improper or overuse of
antimicrobials during food animal production. It may be possible to reduce
the level of drug-resistant infections in humans by encouraging rational
and judicious use of antimicrobials on farms,” Manges said.

“We just want to emphasize that it isn’t just inappropriate use of
antibiotics in human medicine that matters, but also the use of
antibiotics in veterinary medicine and food production that leads to
greater drug-resistant bugs,” the study author added.

The U.S. Food and Drug Administration already advises against the
overuse of antibiotics in livestock, because it can lead to resistant
strains of bacteria.

Dr. Philip Tierno, director of clinical microbiology and immunology at
NYU Langone Medical Center in New York City, said it is not surprising
that the food supply, especially chicken, may play a role in causing
urinary tract and other infections. He said the best protection begins
with proper hygiene.

“If you practice good personal hygiene, good food hygiene and good home
hygiene, we can reduce the number of infections,” he suggested. Proper
hand washing should last for 20 seconds. “Wash in between your [fingers]
and under your nails,” Tierno said. “When dealing with counter surfaces,
use a product that can disinfect surfaces and prevent
cross-contamination.”

Cooking also helps kill disease-causing bugs. “Eat nothing raw. Cook it
well, and if you are eating vegetables, make sure to soak them and wash
them well,” he said.

The solution is definitely not to throw more antibiotics at livestock,
Tierno agreed. As far as preventing E. coli in chicken coops, “we need a
better system developed to raise chickens so they are not raised in
crowded conditions and prone to diseases like E. coli,” he explained.

Good hygiene is never a bad idea, but the truth is that E. coli is
everywhere, said Dr. Elizabeth Kavaler, a urologist at Lenox Hill Hospital
in New York City. “The best defense against urinary tract infections is to
exercise, eat well and get proper sleep so your immune system is strong
and can fend off what you can’t see, including E. coli,” she said. “Be
healthy, wash your hands, take care of yourself and when you have a
urinary tract infection, see your doctor for an antibiotic to treat
it.”

More information

Learn more about food safety at the U.S. Department of Agriculture.

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