Lassa fever is also known as Lassa hemorrhagic fever. It is a disease caused by the Lassa virus, which in most cases affects people in West Africa.


The disease is endemic in West Africa, where it is responsible for an estimated 5,000-10,000 deaths per year.

The most common symptom of Lassa fever is sudden onset of fever, which is often accompanied by other symptoms such as general weakness, muscle pain, headache, sore throat and chest pain.

The incubation period ranges from 3-21 days with symptoms usually starting one week after exposure to the disease.

Early signs and symptoms include fever, headaches, fatigue, nausea, vomiting and abdominal pain.

There is no one specific treatment for Lassa fever. Treatment focuses on relieving symptoms and supporting the patient through the illness.

There is no vaccine for Lassa fever and no specific treatment other than supportive care. Patients are typically treated with fluids and electrolytes to prevent dehydration, as well as pain relievers.

However, there are some things that can be done to help prevent the spread of the disease. Avoiding contact with rodents is the best way to prevent infection.