Lassa fever: Symptoms, Causes, Treatment and Prevention

Definition Lassa fever is an acute viral hemorrhagic illness caused by the lassa virus, a member of the arenavirus family of viruses. It is transmitted to humans from contacts with food or household items contaminated with rodent excreta. The disease is endemic in the rodent population in parts of west …

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Listeriosis (Listeria infection): Definition, Symptoms, Causes, Treatment and Prevention

Definition Listeriosis is an infection caused by a gram stain-positive motile bacterium named Listeria monocytogenes. The foodborne illness produces fever, muscle aches, and, in many people, diarrhea. Severe infections can cause headaches, meningitis, convulsions, and death. Most healthy people exposed to the bacteria have minor or no symptoms, but a …

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Opisthorchiasis: Causes, Symptoms, Diagnosis and Treatment

Definition Opisthorchiasis is an infection caused by either of the two parasite worms, the cat liver fluke, or scientifically called Opisthorchis felineus  (also known as Opisthorchis tenuicollis), or the Southeast Asian liver fluke (called as Opisthorchis viverrini). The term “fluke” means flatfish, since these parasites are flat. Opistorhoz in fish …

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Conjunctivitis: Causes, Risk factors and Treatment.

Introduction Conjunctivitis is a nonspecific term used to describe an inflammation of the conjunctiva, which can be caused by a wide range of conditions. It is commonly referred to as “red eye” or “pink eye.” Conjunctivitis may result from primary involvement of the conjunctival tissue or may occur secondary to …

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Ascariasis: Transmission, Manifestations and Prevention.

Introduction Ascariasis is a parasitosis of the small intestine caused by one of two worm nematodes (family Ascarididae): Ascaris lumbricoides Linnaeus, 1758, which typically infects humans, and A. suum Goeze, 1782, which is generally found in pigs. The two species are morphologically very similar and both can cause cross infections …

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Beriberi: Causes, Manifestations and Diagnosis.

What is Beriberi? Beriberi is a syndrome characterized by a group of symptoms exhibited by people who are deficient in Vitamin B1, also known as thiamine. Therefore, it usually afflicts malnourished individuals’ particularly in underdeveloped countries. Two kinds of beriberi are well known. Wet beriberi leads to cardiovascular dysfunction while …

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Cryptococcosis: Causes, Symptoms and Treatment

Definition Cryptococcosis is a disease caused by fungi from the genus Cryptococcus that infect humans and animals, usually by inhalation of the fungus, which results in lung infection that may spread to the brain, causing meningoencephalitis. Cryptococcosis History In 1894 in Italy, Francesco Sanfelice was the first to isolate Cryptococcus …

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Pellagra: Introduction, Symptoms and Prevention.

Introduction A disorder due to inadequate dietary intake of niacin and/or tryptophan, manifested by a characteristic dermatitis on areas of the skin that are exposed to the sun, beginning as an erythema with pruritus that may lead to vesticulation but more frequently becomes chronic, rough, scaly, and hard with the …

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