agent

Leptospirosis: agent, host, transmission, diagnosis, treatment.

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spirochet

Leptospirosis is essentially animal infection by several serotypes of Leptospira (Spirocheates) and transmitted to man under certain environmental conditions. The disease manifestations are many and varied, ranging in severity from a mild febrile illness to severe, and sometimes fatal disease with liver and kidney involvement. AGENT FACTORS : Leptospira are thin and light motile spirocheates … Read more

Typhoid fever: agent, clinical features, treatment& immunization.

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typhoid-fever

Typhoid fever is the result of systemic infection mainly by S. typhi found only in man. The disease is clinically characterized by a typical continuous fever for 3 to 4 weeks relative bradycardia with involvement of lymphoid tissue and considerable constitutional symptoms. The term “enteric fever” includes both typhoid and paratyphoid fevers. Typhoid fever occurs … Read more