After infection, a prolonged arthritis can occur, but generally the arthritis will clear up in weeks or months. Treatment is limited and no vaccine is available. Symptoms include sudden onset of fever, chills, aches and pains, headache, and severe pain in the arms or legs. A rash may appear and often internal bleeding occurs. The illness can be severe and deaths have been reported.
Treatment is limited and no vaccine is available.
Lassa Fever, Rift Valley Fever, Ebola, and Marburg Disease - Africa. These diseases are caused by viruses, and although they can cause severe illness, they are not a significant health problem to most travellers. Lassa Fever transmission is associated with rats, while Rift Valley Fever is transmitted via mosquitoes. In addition, all of these viruses can be transmitted through contact with an infected person or animal. Treatment is limited and no vaccines are available.