Nematode Infections: Ascaris lumbricoides and Intestinal Helminths
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Questions and Answers

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?

<p>1 billion (D)</p> Signup and view all the answers

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

<p>Contaminated soil and water (C)</p> Signup and view all the answers

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

<p>To embed into the intestinal wall (B)</p> Signup and view all the answers

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

<p>Polymyarıan type (B)</p> 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)?

<p>Protection from digestion (D)</p> Signup and view all the answers

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

<p>1.2 billion (C)</p> Signup and view all the answers

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

<p>14 days (B)</p> Signup and view all the answers

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

<p>200,000 eggs (D)</p> Signup and view all the answers

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

<p>2 to 3 weeks (C)</p> Signup and view all the answers

What is the approximate global infection estimate of trichuriasis?

<p>604 to 816 million (B)</p> Signup and view all the answers

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

<p>Mebendazole 100 mg twice a day for 3 days (B)</p> Signup and view all the answers

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

<p>Poor appetite, wasting, stunting, and reduced cognitive development (B)</p> Signup and view all the answers

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

<p>FLOTAC technique (B)</p> Signup and view all the answers

What is the age group most frequently infected with trichuriasis?

<p>Children aged 5 to 15 (C)</p> Signup and view all the answers

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

<p>Twice a year (A)</p> Signup and view all the answers

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