Category: Microbiology

Bartonella bacilliformis

`A small gram negative pleomorphic motile bacilli with a tuft of polar flagella. It causes oroya fever which is characterised by fever and progressive anemia. It invades the
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Oroya fever

A disease caused by Bartonella bacilliformis characterised by fever and progressive anemia. It is found in the mountain areas of Peru, Columbia and Equador. The bacteri invade the
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Verruga peruana

Nodular ulcerating skin lesions found in survivors of oroya fever caused by Bartonella bacilliformis. Bartonella can be found within these skin lesions.
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Bartonella

Bartonella A genus of tiny gram negative bacilli. The pathogenic species include: Bartonella bacilliformis – causing oroya fever Bartonella henselae – causing cat scratch disease Bartonella quintana –
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Pfeiffer's bacillus

Haemophilus influenzae in blood agar Pfeiffer’s bacillus is Haemophilus influenzae. It is also known as influenza bacillus. It is a small gram negative bacillus first observed by Pfeiffer
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Mycobacterium marinum

It is a non tuberculous mycobacteria belonging to the group ‘photochromogens’ and is the causative factor for swimming pool granuloma. It is similar to M.kansasii. Differentiating features of
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Photochromogens

It is the group of non tuberculous mycobacteria forming Group I of Runyon’s Classification of non tuberculous mycobacteria.  Features: They do not form pigment when kept in the
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