Lassa fever virus

Lassa fever also known as Lassa hemorrhagic fever is a type of viral hemorrhagic fever caused by the Lassa virus. Lassa fever is a zoonotic disease meaning that humans become infected from contact with infected animals.

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Lassa fever is caused by infection with the Lassa virus.

. The reservoir or host of Lassa virus is a rodent known as the multimammate rat Mastomys natalensis. Lassa fever is an acute viral disease carried by a type of rat that is common in West Africa. Those infected are members of a family that recently returned from west Africa where the disease is endemic according to the UK Health Security Agency UKHSA.

While viral hemorrhagic fevers VHFs like Lassa fever are very serious they are not common in the US. The virus is spread by a rat that lives in large numbers in west central and east Africa. Lassa fever is an animal-borne or zoonotic acute viral illness.

It is a hemorrhagic virus which means it can cause bleeding although 8. It can be life-threatening. For the majority of Lassa fever virus infections approximately 80 symptoms are mild and are undiagnosed.

Signs and symptoms of Lassa fever typically occur 1-3 weeks after the patient comes into contact with the virus. Once infected this rodent is able to excrete virus in urine for an extended time period maybe for the rest of its life. Signs and Symptoms.

Less commonly there may be bleeding from the mouth or gastrointestinal tract. 1 day agoTwo people in the UK have been diagnosed with Lassa fever - an Ebola-like virus that can cause symptoms like vaginal bleeding and deafness. It is endemic in parts of West Africa including Sierra Leone Liberia Guinea and Nigeria.

Many of those infected by the virus do not develop symptoms. Mild symptoms include slight fever general malaise and weakness and headache. Reverse transcription-polymerase chain reaction RT-PCR can be used in the early stage of disease.

They carry the virus in their urine and droppings and live in homes and areas where food is stored. However it is important for healthcare providers to understand high consequence viruses like Lassa fever so they can appropriately diagnose and care for their patients. People can get Lassa fever through.

Neighboring countries are also at risk as the animal vector for Lassa virus the multimammate rat Mastomys natalensis is distributed throughout the region. Mastomys rodents breed frequently produce large numbers of offspring and are numerous in. The animal reservoir or host of Lassa virus is a rodent of the genus Mastomys commonly known as the multimammate rat Mastomys rats infected with Lassa virus do not become ill but they can shed the virus in their urine and faeces.

Lassa fever is most often diagnosed by using enzyme-linked immunosorbent serologic assays ELISA which detect IgM and IgG antibodies as well as Lassa antigen. They live in the East of England. The virus itself may be cultured in 7 to 10 days but this procedure should only be.

When symptoms occur they typically include fever weakness headaches vomiting and muscle pains.

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