Both stylists worked at the same Great Clips location in Springfield for more than a week in mid-May.
The clients and the stylists all wore face coverings, and the salon had set up other measures such as social distancing of chairs and staggered appointments, the Springfield-Greene County Health Department said this week.
Of the 140 clients and seven co-workers potentially exposed, 46 took tests that came back negative. All the others were quarantined for the duration of the coronavirus incubation period. The 14-day incubation period has now passed with no new infections linked to the salon, county health officials said.
During the quarantine, county health officials called those who did not take the test twice a day to ask whether they had symptoms related to Covid-19, said Kathryn Wall, a spokeswoman for the Springfield-Green County Health Department.
County health officials called the results encouraging, and said they’re looking into the case for insight on how to stop the spread and help with efforts on future research.
“This is exciting news about the value of masking to prevent Covid-19,” said Clay Goddard, the county’s director of health. “We are studying more closely the details of these exposures, including what types of face coverings were worn and what other precautions were taken to lead to this encouraging result.”
One hairstylist had worked with 56 clients at the salon while the second one had seen 84 customers and seven coworkers. They went to the salon for about eight days ending on May 20.
The salon kept impeccable records that made contact tracing possible, Goddard said. But he cautioned about the risks of overwhelming resources in such incidents.
“We can’t have many more of these,” he said last month. “We can’t make this a regular habit or our capabilities as a community will be strained.”
In a statement, Great Clips said it welcomed the results.
“All customers who were tested for Covid-19 after visiting a franchised Great Clips salon in Springfield have confirmed negative test results. Together with our 1,100 independent franchisees, we care deeply about the well-being of customers, salon staff and the communities we serve, and we are grateful for the health of these individuals,” it said in a statement to CNN affiliate KYTV.