A month later her right eye began to bother her. He rinsed it with water and exited the source of the irritation – only this was not a deluded eyelash or inclined dust particles.
It was a live worm about half an inch long, transparent and brushwood. And she wasn't alone.
Shortly after the discovery of the first worm, the 68-year-old wiped another wriggling tear from her eye, where she lived in the space between her lower eyelid and the eyeball.
In a rare event, with only one other documented case, experts say the Nebraska woman was infected by a parasitic eyeworm known as Thelazia gulosa a species commonly found in cattle , according to a recent document published in the journal Clinical Infective Diseases. Parasites are often spread to cows ̵
1; their preferred hosts – through certain types of flies on the face that eat eye secretions, such as tears, the book said on October 22. Flying insects carry young worms and when they feed, they throw larvae at the surface of the new guest's eye, according to the Centers for Disease Control and Prevention.
The flies the woman lived through were probably larvae carriers, and at least one was able to connect with her eyes long enough to leave the parasites behind, Richard S. Bradbury, the newspaper's lead author, told Gizmodo. The trail along it is located near the Carmel Valley, California, an area southeast of Monterey known for cattle ranching.
"Normally, people would shoot any flies near their eyes before they could do it. the patient is confronted with so many flies at once that he cannot shoot them before he expels the larvae of his eye, "Bradbury, a former member of the CDC's Parasitic Diseases and Malaria Division, wrote in an email.
Once a non-baptized woman discovered the two worms in March 2018, she went to an ophthalmologist in Monterey, California, near where she was staying at the time. The doctor removed a third worm that was retained for analysis.
However, the irritation of her eyes continued, so that when the woman returned to Nebraska, she consulted another doctor. No worms appeared during this visit, but the woman was informed that both her eyes were inflamed.
It did not take long for the woman to find and extract what the fourth and final worm would be. Her symptoms finally cleared up about two weeks later, the magazine article said.
Meanwhile, the worm sample makes the circles. It was first sent to the California State Public Health Laboratory before being forwarded to the CDC, where researchers have nailed the exact species and noticed significant details about the eyeworm.
The worm is an adult female and its eggs contain advanced larvae, "indicating that humans are suitable hosts for reproduction of T. gulosa," said in the document.
The horrific experience of a Nebraska woman was preceded by an ominously similar case with a 26-year-old woman who also contracted worms in 2016 after spending time in livestock fields near her native southern Oregon, Lena H reported The Sun by The Washington Post. In this case, the woman had 14 of the tiny translucent worms removed from her eye.
Although there are only two cases of parasite occurrence in humans, researchers say that the relatively short period between the first and second cases suggests that "this may be an emerging zoonotic disease in the United States, "according to an October article.
"Although it may simply be an 'accidental' event that two cases have occurred within a year or two of one another, it raises the possibility that something may have changed in the ecology of T. gulosa in the US to get him to start infecting people from time to time, ”Bradbury told Gizmodo.
But other infectious disease specialists say it's still too early to call it a trend.
"You have to have the right fly, with the right mistake and the right time," Erin Bonura, associate professor of infectious diseases at Oregon Health and Science University, who was the treating physician in the 2016 case, told The Post. "It's just a coincidence and so we don’t see it very often. ”
In addition, it is unlikely that any parasite will suddenly decide to switch hosts, such as from animal to human, William L. Gosnel,
"Parasites are eukaryotic organisms like us, so they do not change very quickly. "Says Gosnel.  In fact, much remains unknown about this particular parasite and its interactions with humans, Bonura said. The second case could help change that by providing additional data leading to a better understanding of the worm and ideas on how to prevent future infections, she said.
Bonura emphasized that while "no one wants to have a worm in their eyes, they must get out," parasites are not dangerous and the chances of surviving a nightmarish ordeal are slim.
"It's unfortunate," she said of the infection. "We don't want people to worry about worm infestation every time they start running."