The coronavirus has appeared at the military base known locally as the New Cumberland Army Depot.

In a statement received by PennLive, Col. Marchant Callis, commander of DLA Distribution Susquehanna, reported Tuesday that “we have received the first positive COVID-19…case.”

The statement to workers, which base spokeswoman Dawn Bonsell on Wednesday confirmed came from Callis, also said the total number of COVID-19 cases at that base is four.

The employee who tested positive hasn’t been on the base since March 23, Callis said. He said employees who had contact with the person have been told to self-isolate.

The building where the employee worked was closed as of 2 p.m. Tuesday for cleaning and to be disinfected, Callis said. He said it is expected to reopen Friday afternoon.

Bonsell said the approximately 2,000 employees of the base are being directed to practice social distancing and follow other recommended health guidelines for dealing with the coronavirus.