"We are continuing to see cases occurring among patients," Dr. Ian Plumb, the lead author of the report, told CNN. "The antibiotic resistance pattern of this strain is alarming because the primary oral antibiotics used to treat patients with this type of Salmonella infection may not work."
The CDC describes this strain as "emergent," and said it was first detected in 2016.
"To prevent infection, consumers should avoid eating soft cheese that could be made with unpasteurized milk, and when preparing beef they should use a thermometer to ensure appropriate cooking temperatures are reached: 145 degrees Fahrenheit (62.8 Celsius) for steaks and roasts followed by a 3-minute rest time, and 160 degrees Fahrenheit (71.1 Celsius) for ground beef or hamburgers," the CDC report said.
Avoiding the unnecessary use of antibiotics in cattle can also help prevent the spread of this salmonella strain, according to the CDC.