A further probable case of Lassa fever is under investigation. The cases are within the same family in the East of England and are linked to recent travel to West Africa. Lassa fever is an acute viral haemorrhagic illness caused by Lassa virus. People usually become infected with Lassa virus through exposure to food or household items contaminated with urine or faeces of infected rats – present in a number of West African countries where the disease is endemic. The virus can also be spread through infected bodily fluids. Most people with Lassa fever will make a full recovery, however severe il…

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