Schistosoma Japonicum Eggs and Life cycle

Schistosoma japonicum is a parasitic trematode (blood fluke) that causes a disease called Schistosomiasis in humans and other animals. S. japonicum is similar to Schistosoma mansoni but it infects both large and small bowel and produces a greater number of eggs than S. Mansoni; hence its disease, therefore, tends to be more severe, and rapidly progressive with …

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

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

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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Psittacosis (Ornithosis) Symptoms, Etiology, Treatment and Prevention

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

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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Chlamydia Infections Symptoms in Men and Women, Chlamydia Discharge, Treatment and Complications

Chlamydia is a Gram-negative coccoid or ovoid bacterium that is an obligatory intracellular bacterium (it depends on another cell such as the human cell to live); some chlamydiae cause Trachoma (caused by Chlamydia trachomatis) while others cause Pneumonia (caused by Chlamydia pneumonia). Types of Chlamydia species that cause disease in humans (Chlamydia Infections Causes) …

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