Nematode Infections: Ascaris lumbricoides and Intestinal Helminths

Play an AI-generated podcast conversation about this lesson

What is the characteristic arrangement of somatic muscles in Trichuris trichiura?

Holomyrian type (correct)

Meric type

Asymmetrical type

Pseudocoelomic type

What is the estimated number of eggs produced by a female Trichuris worm over its average lifespan of 2 years?

60 million (correct)

40 million

20 million

80 million

Which of the following is a common consequence of heavy Trichuris trichiura infections?

Abdominal pain

Bowel obstructions and intussusception (correct)

Lactose intolerance

Vitamin A malabsorption

What is the approximate number of individuals infected with Ascaris lumbricoides worldwide?

1 billion Signup and view all the answers

What is the primary method of transmission of Trichuris trichiura infections?

Contaminated soil and water Signup and view all the answers

What is the function of the TT47 protein in Trichuris trichiura?

To embed into the intestinal wall Signup and view all the answers

What is the type of muscle arrangement found in Ascaris lumbricoides?

Polymyarıan type Signup and view all the answers

What is the primary function of the secretion produced by Ascaris lumbricoides, known as pepsin inhibitor 3 (PI-3)?

Protection from digestion Signup and view all the answers

What is the approximate number of people affected by Trichuris trichiura infections worldwide?

1.2 billion Signup and view all the answers

What is the duration of the hepato-tracheal migration of Ascaris lumbricoides larvae?

14 days Signup and view all the answers

What is the estimated number of eggs produced by a female Ascaris lumbricoides per day?

200,000 eggs Signup and view all the answers

What is the estimated duration for Ascaris lumbricoides eggs to develop into the infective stage in the soil?

2 to 3 weeks Signup and view all the answers

What is the approximate global infection estimate of trichuriasis?

604 to 816 million Signup and view all the answers

What is the recommended treatment for trichuriasis according to the World Health Organization?

Mebendazole 100 mg twice a day for 3 days Signup and view all the answers

What is the consequence of heavy Trichuris infections on children's development?

Poor appetite, wasting, stunting, and reduced cognitive development Signup and view all the answers

What is the diagnostic technique that shows higher sensitivity compared to Kato-Katz and other concentration techniques?

FLOTAC technique Signup and view all the answers

What is the age group most frequently infected with trichuriasis?

Children aged 5 to 15 Signup and view all the answers

What is the recommended frequency of mass drug administration for trichuriasis in high-prevalence communities?

Twice a year Signup and view all the answers