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Monthly Archives: March 2012

Typhus disease (brill-zinsser) – Causes, Symptoms, Diagnosis and Treatment

Brill-zinsser disease is recrudescence of epidemic typhus which occurs years after the original disease. Organisms are the same (R. prowazekii). The clinical picture resembles epidemic typhus. The Weil-Felix reaction is negative, but diagnosis is established by complement fixation, microscopic agglutination and immuno fluorescent antibody reactions. Treatment is on same lines as …

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Rickettsiae

Rickettsiae are small non-motile, pleomorphic, intra cellular parasites about the size of bacteria which involve humans by an insect vector and an animal reservoir. The arthropid vector may be a louse, flea, tick or larval mite, Rickettsias which are pathogenic for humans are capable of multiplying in not only various …

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Glandular fever (infectious mononucleosis) – Causes, Symptoms, Diagnosis and Treatment

Glandular fever (infectious mononucleosis) is an acute infectious disease characterized by high temperature and lymphodenopathy. It is caused by Epstein-Barr virus (HHV-4) and is transmitted in humans through saliva by close contact and is often referred to as ‘Kissing disease’. Glandular fever (infectious mononucleosis) is of worldwide distribution involving mainly young adults. …

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Leptospirosis – Causes, Symptoms, Diagnosis and Treatment

Leptospirosis is a zoonotic disease caused by all leptospiras irrespective of their specific serotypes. Leptospira are tightly coiled motile spirochaetcs and are broadly divided into two species – Leptospira Interrogans comprising of all pathogenic strains and Leptospira biflexa which consists of non-pathogenic strains. Of the various serotypes human infection is …

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Acquired Immune Deficiency Syndrome (AIDS) – Causes, Symptoms, Diagnosis and Treatment

Acquired immune deficiency syndrome may be defined as an opportunistic disease as a result of infection with human immunodeficiency virus type-i (HIV-i) which produces progressive deterioration of the immune system of the body and results in development of persistent symptoms ultimately leading to secondary infections, malignancies, neurologic disorders and other …

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