Lassa fever in Nigeria (Update 1)
12 Dec 2018
From 1 January to 2 December 2018, the Nigeria Centre for Disease Control 
reported a total of 598 confirmed and probable cases of lassa fever. Of these cases, 164 have died.
23 states have recorded at least one confirmed case in 92 Local Government Areas (Edo, Ondo, Bauchi, Nasarawa, Ebonyi, Anambra, Benue, Kogi, Imo, Plateau, Lagos, Taraba, Delta, Osun, Rivers, FCT, Gombe, Ekiti, Kaduna, Abia, Adamawa, Enugu and Kano).
The outbreak remains active inEdo, Ondo, Plateau, Gombe and Kano States.
Advice for Travellers
Lassa fever presents a low risk to most travellers unless they are living in poor sanitary conditions with overcrowding in rural areas where the host is usually found. Lassa fever is a zoonotic viral disease transmitted via the excreta of an infected Mastomys rat. Healthcare workers are at risk if good infection control and barrier nursing methods are not maintained.
Travellers returning from affected areas who develop symptoms of fever, malaise, headache, sore throat, muscle pain, chest pain, nausea, vomiting, diarrhoea, and abdominal pain should seek medical advice.
For further informations see Viral Haemorrhagic Fever.