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Class 9: Toxoplasma gondii and Coccidia

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Questions and Answers

What staining technique is used to demonstrate the pink-coloured acid fast oocyst of Cryptosporidium parvum?

Modified Ziehl-Neelsen stain or Kinyoun acid fast.

What is the primary source of Cryptosporidium parvum infection for humans?

Contaminated water and food.

What is the habitat of Cryptosporidium parvum in the human body?

Small intestine, but can also be found in the stomach, large intestine, and lungs.

What is the infective stage of Cryptosporidium parvum that is transmitted to humans?

Sporulated oocyst. Signup and view all the answers

What is the significance of Cryptosporidium parvum in AIDS patients and immunocompromised persons?

It causes diarrhoea. Signup and view all the answers

What is the role of personal hygiene in preventing Cryptosporidium parvum infection?

It helps prevent the spread of infection. Signup and view all the answers

What is the purpose of boiling drinking water in preventing Cryptosporidium parvum infection?

To kill the oocysts. Signup and view all the answers

What is the role of health education in preventing Cryptosporidium parvum infection?

It raises awareness about the infection and its prevention. Signup and view all the answers

What is the mode of transmission of Cryptosporidium parvum?

Ingestion of contaminated water and food, or direct contact with infected animals. Signup and view all the answers

What is the significance of faecal disposal in preventing Cryptosporidium parvum infection?

Proper faecal disposal prevents the spread of infection. Signup and view all the answers