In Nigeria, before 2017 the most recent case of monkeypox was reported in 1978, but by mid-November 2017, a large outbreak caused by the West African clade resulted in 146 suspected cases and 42 laboratory-confirmed cases from 14 states.
The Lassa fever virus has multiple channels or chain of infection.
Liberian health authorities have issued an alert on the possible outbreak of monkeypox.
During the current outbreak, 20 states have recorded at least one confirmed case across 57 local councils.
A doctor, with the Federal Medical Center, and an infant infected with Lassa fever have died in Umuahia, Abia State.
A total of eight cases with zero deaths have been reported as of March 25 since the start of the outbreak.
After a decades-long vaccination campaign, the World Health Organization (WHO) declared Latin America free of measles in 2016, but two years later an outbreak in Venezuela is threatening that achievement.
Response to the Lassa fever outbreak has been intensified, with focus on continued engagement with affected communities to prevent, recognize, and report cases of Lassa fever.
After nearly 400 confirmed infections and 100 deaths, the spread of Lassa fever in Nigeria is beginning to slow but the epidemic is not yet contained.
Approximately 900 hogs at the infected farm are being culled.