A 5-year-old Massachusetts girl is undergoing treatment at her home after one black widow spider bit her.

Parents Josh and Kristine Donovan thought that a bruise behind their daughter’s knee was an ordinary bug bite, which she got while playing in “their back yard of their house” like most of the children. However, it hit them like a ton of bricks when they found the bruise growing and 5-year-old Kailyn suffered from fever.

Doctors initially told the Mendon, Mass., parents that it was likely to be a spider bite and prescribed antibiotics for the girl.

However, when the parents found out that their daughter remained fever, the parents were quick to refer to a paediatric infectious-disease doctor at the UMass Memorial Medical Center.

The parents were thrown a curve when they learnt that it was a black widow spider bite, one of the most venomous spiders in North America.

“I didn’t know what to say,” Josh Donovan told ABC affiliate WCVB. “It’s not something you would expect, especially in Massachusetts.”

He said the UMass Memorial doctor explained that “the black mark on her leg was actually the venom from the spider.”
William Durbin, the specialist who is considering Kailyn’s case, told the Boston Globe that the spider bite’s deep colour showed signs of necrosis or cell injury.

“She had a very distinctive bite, which was very scary for her parents and of course the doctors, too,” Durbin told the newspaper. But, he said, the child is in good health and will make a full recovery.

Still, Ksilyn’s parents sought to alarm other parents.

“If you think it’s something, just keep looking for an answer,” Kristine Donovan told WCVB. “I kind of had a feeling it was pretty bad, and I just kept kind of pushing to have it checked out.”

Black widows, which have small, black bodies adorned with red hourglass-like spots, mainly live in the United States, mostly in the South and West, remaining in outdoor areas such as barns, sheds and woodpiles, according to the University of Maryland Medical Center.

Black widow bites are not commonly found in New England, but there is no doubt that their venom is known and well heard of, according to the Regional Center for Poison Control and Prevention.

Symptoms of pinprick or the black widow bite include muscle cramps and muscle weakness; numbness, nausea and vomiting; trouble breathing; and seizures, according to the University of Maryland Medical Center.