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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 Africa.
Studies show up to half a million cases of Lassa fever per year in West Africa, with about 5,000 resulting in death.
Lassa virus was detected in 25 of 60 (42%)patients in northern and central Edo State. The Lassa Virus affects adults and children alike. While most humans are infected either from contact with an infected rat or inhalation of air contaminated with rat excretions, like other hemorrhagic fevers, Lassa fever can be transmitted directly from one human to another. It can be contracted through direct contact with infected human blood excretions and secretions, including through sexual contact. No evidence of airborne transmission person-to-person is seen. Transmission through breast milk has also been observed.
Studies show up to half a million cases of Lassa fever per year in West Africa, with about 5,000 resulting in death.
Lassa virus was detected in 25 of 60 (42%)patients in northern and central Edo State. The Lassa Virus affects adults and children alike. While most humans are infected either from contact with an infected rat or inhalation of air contaminated with rat excretions, like other hemorrhagic fevers, Lassa fever can be transmitted directly from one human to another. It can be contracted through direct contact with infected human blood excretions and secretions, including through sexual contact. No evidence of airborne transmission person-to-person is seen. Transmission through breast milk has also been observed.
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