Leptospira interrogans: Leptospira bacteria, Serovars (Serotypes) and Morphology

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Leptospira interrogans is the causative agent of a disease called Leptospirosis (also known as Weils Disease or Weils syndrome). These bacteria are spirochetes (spiral rods). Leptospira spp There are 2 species of Leptospira bacteria which include Leptospira biflexa and Leptospira interrogans. The most important that causes disease in humans is Leptospira interrogans. Leptospira Classification Leptospira belongs to …

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Psittacosis (Ornithosis) Symptoms, Etiology, Treatment and Prevention

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Psittacosis also called Ornithosis (or simply called Parrot disease or Parrot Fever) is an infectious disease of birds (Zoonosis) such as Parrots, Chickens and Pigeons that can be transmitted to humans and it is caused by bacterium called Chlamydia psittaci and transmitted by Psittacine birds such as Parrots and other birds (parakeets and macaws). Humans get infected when …

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Melioidosis (Whitmore disease) Symptoms, Transmission, Diagnosis and Treatment Guidelines

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What is Melioidosis? Melioidosis is an infectious disease caused by a Gram-negative aerobic bacilli bacteria called Burkholderia pseudomallei which is found in the soil and surface water. Melioidosis has different names and is also called Pseudoglanders disease, Whitmore’s disease, Nightcliff gardener’s disease, Morphia injector’s septicaemia or Paddy-field disease. Melioidosis is a wide spectrum of disease and may occur in different …

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Onchocerca volvulus Life cycle, Morphology, Symptoms, Diagnosis and Treatment

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Onchocerca volvulus is a filarial nematode that causes a disease commonly called River Blindness or Onchocerciasis; the vector of Onchocerca volvulus is the Similium species of black fly. This roundworm is a common cause of blindness worldwide. Onchocerca volvulus Epidemiology Onchocerca volvulus is the second leading cause of infectious blindness worldwide after trachoma; it …

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