A Vietnamese man suspected of having Ebola after returning to Viet Nam from Guinea a week ago and coming down with a high fever has been confirmed as having malaria, health authorities reported on Sunday.

The second real-time PCR test performed by the Central Institute of Hygiene and Epidemiology showed that 26-year-old Chu Van Chung tested negative for the deadly Ebola virus, said Dr. Ngo Thi Kim Yen, the Deputy Director of the Da Nang Department of Health.

Chung only had malaria, as shown in the results of a medical test announced late on November 1, Dr. Yen said.

A hospital staff member in the Da Nang Hospital wears protective clothes before contacting a suspected Ebola patient on November 1, 2014.

Before returning to Viet Nam, Chu had worked in Guinea for two years. He departed from the country five days ago and traveled through Morocco and Qatar before arriving in Viet Nam at Ho Chi Minh City’s Tan Son Nhat airport on October 28.

On October 31, Chung flew from HCMC to Da Nang and stayed in a hotel on Le Dinh Duong Street. A day later, Chung was taken to the Hoan My Hospital at 10:30 am with a high fever, up to 40 degrees C, and a headache.

That afternoon, Chung was taken to the Da Nang Hospital, where he, as a suspected Ebola patient, was isolated and received special medical attention in accordance with guidelines from the Ministry of Health on diagnosis, prevention and treatment of the EVD.