21 persons have so far died from Lassa fever in the fresh outbreak of the disease nationwide.
Director General of the Nigeria Centre for Disease Control, Doctor Chikwe Ihekweazu, said the 21 deaths were recorded from 77 confirmed cases of the disease.
Ihekweazu speaking at the meeting of the National Executive Council of the National Association of Resident Doctors, in Abuja, said 10 of the 77 confirmed cases are health workers.
President of Nigeria Medical Association, Professor Mike Ogirima, directed medical and other health workers, to stop treating patients without wearing protective gears.
Lassa fever is a viral infection caused by the Lassa fever virus and the disease occurs all year round but more cases are recorded during the dry season.
It is spread through direct contact with urine, faeces, saliva or blood of infected rats, eating food or drinking contaminated water.
The disease can be prevented through enhanced personal hygiene, avoidance of all contact with rats (dead or alive) and keeping the house and surrounding clean.