(TEGNA) — A pair of hairstylists who tested positive for the coronavirus have potentially exposed at least 140 clients to the disease, officials in Missouri said this week.

At first, seven co-workers and 84 clients were potentially exposed to the virus after one hairstylist tested positive.

But on Saturday, a day after announcing the first hairstylist tested positive, the Springfield-Greene County Health Department said a second hairstylist who had served 56 clients tested positive.

The health department said the stylists and their clients were both wearing face coverings, and that everyone potentially exposed would be contacted and tested for the virus.