There's an article? I thought it was just a headline!

For context:

Peru—a country of over 34 million people—typically sees fewer than 20 suspected cases per month of Guillain-Barré Syndrome (pronounced ghee-yan bar-ray or abbreviated GBS). But, between June 10 and July 15, the country tallied 130 cases, including the four deaths, bringing the year's total to 231, the WHO reported Tuesday.

...

The cause of the outbreak is puzzling—even though this isn't Peru's first alarming GBS outbreak. In 2019, the country reported an unprecedented surge of nearly 700 cases between May and July, bringing the total to over 900. Before that, a large GBS outbreak was considered between 30 to 50 cases.

Researchers concluded that the culprit behind the extremely unusual 2019 outbreak was the intestinal pathogen, Campylobacter jejuni. The gut-dwelling bacteria is well-known as one of the most common causes of food poisoning and diarrheal cases in the world. But, less well-known, it's also one of the leading triggers for GBS.

(Bold text is from me)

Edit: I find it a bit funny that they have to introduce Peru as being a country. Is this not a widely known fact?