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Strain from Salmonella Newport in beef in the United States and in some soft cheeses in Mexico has been found to be resistant to antibiotic treatment, according to a message posted on Friday by Centers for disease control and prevention

The CDC reports the results of a study conducted on Salmonella Newport that did not respond to two oral agents, which are often recommended for the treatment of salmonella infections.

Antibiotic resistance is rare in salmonella cases in humans, although most salmonella patients do not actually need antibiotics at all.

For those who do, doctors are concerned that commonly recommended treatments will not be effective in the future if there are more antibiotic-resistant strains, Ian Plumb, an epidemiologist at the CDC's Epidemiology Unit, and author of the study, told USA Today.

"Salmonella Newport is one of the most common types of salmonella, which is a major cause of foodborne illness in the United States," says Plumb.

This particular antibiotic-resistant strain was not discovered until 2016, ”Plum said. It has since been found repeatedly in samples of cecal and beef, along with a mixture of stereo fresco and Oaxaca cheese in the United States and Mexico.

Last year, there were 255 cases spread across 32 states in the United States between March 2018 and June 2019.

The CDC, Plumb said, monitors all new cases of infection.

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" For infected patients with this strain of Salmonella Newport and in need of antibiotic treatment, alternative medicines may need to be considered, "says Plumb.

Plumb stated that the CDC was concerned that the strain appeared to be new. This means that there may be more antibiotic resistant infections in the future.

The CDC is not alone in its concerns.

Greg Frank, director of Work to Fight AMR, a group that fights drug-resistant infections, told the USA TODAY report emphasizing the importance of antibiotic-resistant infections as a problem.

"Drug-resistant drugs develop a lot.

This strain, which is found only in beef and soft cheese, is associated with dairy cows. This is also troubling, Plumb said, as findings suggest the strain may spread in cattle.

"We know that any use of antibiotics in humans, animals and the environment can lead to the development and spread of resistant bacteria," Plumb said.

In the last few years, he said, there has been an increased awareness of antibiotic-resistant bacteria that may limit treatment options, said Plumb. So when this happens, it may be a reminder to consider antibiotics a "valuable resource" that should only be used in humans and animals when needed.

To avoid Salmonella infection when eating beef or cheese, Plumb has a few tips:

  • Cook beef at a safe temperature. Minced beef should be cooked to at least 160 ° F and steaks and roasts to a minimum of 145 ° F.
  • Avoid eating soft cheese made with raw (unpasteurized) milk. Label can help you understand when cheese is "made with pasteurized milk."

Follow Morgan Hines on Twitter: @MorganEmHines .


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