There's now one confirmed case of norovirus associated with an investigation of restaurant chain Buffalo Wild Wings, Kansas health officials said Friday.
The Johnson County Department of Health and Environment obtained lab test results confirming a positive case of the foodborne illness, it said in a release, with additional test results pending.
The Buffalo Wild Wings investigation is one of multiple outbreaks in the area, the state health department said.
The Kansas Department of Health and Environment said earlier this week that it received more than 600 reports of illness related to various locations in Overland Park, Kansas, during the end of January. Just 10 of those cases are associated with Buffalo Wild Wings, while most are associated with a different restaurant nearby.
Buffalo Wild Wings spokeswoman Heather Leiferman told CNBC that despite one positive norovirus test, there's no confirmation that Overland Park's Buffalo Wild Wings is the source.
"We understand that the Johnson County health department is investigating multiple potential sources of the virus, which has been widespread in the community for several weeks," Leiferman said. "We are monitoring the situation and will continue to work closely with health department until their investigation is complete."