Emergencies preparedness, response

Lassa fever

Lassa fever is an acute viral haemorrhagic illness caused by Lassa virus, a member of the arenavirus family of viruses. It is transmitted to humans from contacts with food or household items contaminated with rodent excreta. The disease is endemic in the rodent population in parts of West Africa. Person-to-person infections and laboratory transmission can also occur, particularly in the hospital environment in the absence of adequate infection control measures. Diagnosis and prompt treatment are essential.


  • 3 July 2015
    Middle East respiratory syndrome coronavirus (MERS-CoV) – Republic of Korea
  • 3 July 2015
    Middle East Respiratory Syndrome coronavirus (MERS-CoV) – Saudi Arabia
  • 30 June 2015
    Middle East respiratory syndrome coronavirus (MERS-CoV) – Republic of Korea