Health officials in Guinea have reported that a fourth person has been killed by the Ebola virus. According to a report from Reuters, the disease that left 11,300 people dead in West Africa since 2013 is still lingering among the population.

According to Fode Tass Sylla, a spokesman for the health organization leading the charge against the disease in Guinea, a young girl was hospitalized at the treatment center in Nzerekore and subsequently died from the illness.

Since February 29, health officials report that three people have died as a result of the Ebola virus. Doctors and researchers alike are on a heightened alert for the disease, hoping to trace friends and family of the deceased to stop the further spread of the virus.

Guinea is believed to be the starting point for the massive outbreak in 2013 that left more than ten thousand people dead. By December of last year, the World Health Organization estimated that up to 2,500 people were killed by the virus. The WHO declared the outbreak over in December, claiming that there were no more active transmissions of the virus in affected areas.

Health officials remain wary about the disease, however. The recent flare-ups are far from the full-scale outbreak witnessed over the past three years, but it is still possible for the virus to spread via human contact. The virus can remain inside an infected person long after symptoms stop, particularly in the eyes, central nervous system, and the bodily fluids of survivors.

The cases were reported in the village of Korokpara, which is roughly 60 miles from Nzerekore. It remains unclear how many villagers had contracted the disease.

A news release from the World Health Organization describing the recent flare-up can be found here.