Epidemiology
The dissemination of the infection can be assessed by prevalence of antibodies to the virus in populations of:
*.Sierra Leone - 8–52%
*.Guinea - 4–55%
*.Nigeria - about 21%
Lassa fever is a viral hemorrhagic fever in West Af…Read More
Prevention
Control of the Mastomys rodent population is impractical, so measures are limited to keeping rodents out of homes and food supplies, as well as maintaining effective personal hygiene. Gloves, masks, laboratory coats, and gog…Read More
Symptoms of Lassa Fever
In 80% of cases, the disease is asymptomatic, but in the remaining 20%, it takes a complicated course. The virus is estimated to be responsible for about 5,000 deaths annually. The fever accounts for up to one-third of death…Read More
Diagnosis
A range of laboratory investigations are performed to diagnose the disease and assess its course and complications. An ELISA test for antigen and IgM antibodies give 88% sensitivity and 90% specificity for the presence of th…Read More
Prognosis
About 15-20% of hospitalized Lassa fever patients will die from the illness. The overall mortality rate is estimated to be 1%, but during epidemics, mortality can climb as high as 50%. The mortality rate is greater than 80% …Read More
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