(Reuters) – A medical clinic outside of Boston was quarantined and a patient has been isolated outside the hospital with a possible case of Ebola, the Boston Globe reported on Sunday.

Police, fire officials and emergency medical services have arrived at the Harvard Vanguard Medical Center in Braintree, Massachusetts, Joe Zanca, with the Braintree Fire Department, told the Globe.

“Ebola protocol is in place,” Zanca said, noting that the patient in isolation recently traveled to West Africa.

Representatives of the hospital and Braintree fire and police departments could not immediately be reached for further comment.

The current Ebola outbreak, the worst on record of the disease, has killed more than 4,000 people, mostly in Liberia, Sierra Leone and Guinea in West Africa.

The development in Massachusetts comes hours after the announcement that a Texas health worker contracted Ebola after treating a Liberian man who died of the disease at a Dallas hospital last week.