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Human Health And Disease

Question
CBSEENBI12046959

When children play bare footed in pools of ditty water and flood water, they may suffer from disease like

  • leptospirosis and bilharzia

  • malaria, amoebic dysentery and leptospirosis

  • bilharzia, infective hepatitis and diarrhoea

  • guinea worm infection, elephantiasis and amoebic dysentery.

Solution

A.

leptospirosis and bilharzia

Leptospirosis (also known as Weil's disease, canicola fever, canefield fever, nanukayami fever or 7-day fever) is a bacterial zoonotic disease caused by spirochaetes of the genus Leptospira that affects humans and a wide range of animals, including mammals, birds, amphibians. and reptiles. It was first described by Adolf Weil in 1886 when he reported an 'acute infectious disease with enlargement of spleen, jaundice and nephritis. Humans become infected through contact with water, food, or soil containing urine from these infected animals. This may happen by swallowing contaminated food or water or through skin contact.

Leptospirosis is common among watersport enthusiasts in certain areas as prolonged immersion in water is known to promote the entry of the bacteria Schistosomiasis or bilharzia is also called snail fever or swimmer's itch.

Schistosomiasis is a life threatening parasitic disease caused by a worm that lives in a host snail. Humans can become infected when they come in contac with water in ponds and rivers where the snail lives. The pathology is mostly caused by the large number of eggs becoming stuck in various body parts, in particular the liver (causing liver enlargement and malfunction) and the kidneys (causing kidney damage, detectable by blood in the urine).