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.

  • 2 February 2016
    Middle East respiratory syndrome coronavirus (MERS-CoV) – Saudi Arabia
  • 29 January 2016
    Zika virus infection – United States of America - United States Virgin Islands
  • 29 January 2016
    Circulating vaccine-derived poliovirus – Lao People’s Democratic Republic