ZOONOTIC

Question 1

What is the primary cause of cutaneous larva migrans, also known as creeping eruption?

Answer 1

• Ancylostoma braziliense/ caninum
• Infective Stage: Filariform larva (Non-human hookworms)
• Mode of Transmission: Skin penetration

Question 2

Which parasitic worm species is responsible for causing cutaneous larva migrans and is characterized by its infective stage as filariform larva?

Answer 2

• Ancylostoma caninum, known for causing cutaneous larva migrans or creeping eruption
• Primarily transmits through skin penetration and possesses the infective stage of filariform larva.

Question 3

What conditions are caused by the accidental ingestion of T. canis and T. cati?

Answer 3

• Visceral larva migrans and ocular larva migrans are caused by the accidental ingestion of T. canis and T. cati.

Question 4

What is the infective stage of T. canis, T. cati and what is the primary mode of transmission?

Answer 4

• The infective stage of T. canis and T. cati is the embryonated egg, and the primary mode of transmission is ingestion.

Question 5

What is the characteristic presentation of infection in humans caused by Dirofilaria immitis, and what diagnostic method is commonly used for confirmation?

Answer 5

• Characteristic Presentation: Nodules in the lungs, often referred to as “coin lesions.”
• Diagnostic Method: X-ray.

Question 6

Which parasitic worm, causing infections characterized by coin lesions in the lungs of humans, is primarily transmitted through skin inoculation?

Answer 6

• Known for its infective stage as the third-stage larva (L3) and primarily transmitted through bites, involving skin inoculation.

Question 7

What is the definitive host for P. cantonensis (A. cantonensis), and what disease does it cause in humans?

Answer 7

• The definitive host for P. cantonensis (A. cantonensis) is rats.
• It causes Eosinophilic meningitis/cerebral parastrongyliasis in humans.

Question 8

What is the infective stage of Angiostrongylus cantonensis (P. cantonensis) and its mode of transmission?

Answer 8

• Infective Stage: Larva; Mode of transmission: Ingestion of raw snails carrying the larva

Question 9

Which parasite causes Anisakiasis, and what is its infective stage and mode of transmission?

Answer 9

• Parasite: Anisakis spp
• Infective Stage: Larva
• Mode of Transmission: Ingestion