Health workers in Nigeria have begun a mass vaccination programme aimed at halting the mass outbreak of meningitis that has killed nearly 340 people since late last year.
The Nigeria Centre for Disease Control said there had been 2,997 suspected cases of the disease in 16 states as of April 3, with 336 deaths.
Zamfara, in northwest Nigeria, and the neighbouring states of Sokoto, Katsina, Kebbi and Niger have been hit hardest by the disease, which broke out in November.
Vaccinators have started in Zamfara State to administer doses of vaccine to contain the spread of the disease.
