| − | Typhus refers to a series of different diseases caused by a group of bacteria known as Rickettsia. It is usually transmitted by lice and fleas, often from infected rats.<ref>http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/eight/000112663.htm</ref> Symptoms of mild typhus (endemic typhus and murine typhus) include headaches, fever, nausea, fatigue and a red rash. Severe typhus (epidemic typhus) produces the same symptoms to a greater degree, and may also cause delirium. Untreated, epidemic typhus causes death in 10% to 60% of victims, depending on age and general health.<ref>http://www.nlm.nih.gov/medlineplus/ency/article/001363.htm</ref> | + | '''Typhus''' refers to a series of different diseases caused by a group of bacteria known as Rickettsia. It is usually transmitted by lice and fleas, often from infected rats.<ref>http://www.mercksource.com/pp/us/cns/cns_hl_dorlands_split.jsp?pg=/ppdocs/us/common/dorlands/dorland/eight/000112663.htm</ref> Symptoms of mild typhus (endemic typhus and murine typhus) include headaches, fever, nausea, fatigue and a red rash. Severe typhus (epidemic typhus) produces the same symptoms to a greater degree, and may also cause delirium. Untreated, epidemic typhus causes death in 10% to 60% of victims, depending on age and general health.<ref>http://www.nlm.nih.gov/medlineplus/ency/article/001363.htm</ref> |