Nematodes

Question 1

Why are nematodes successful?

Answer 1

High level of pre adaptation
Survive range of conditions
Aerobic and anaerobic
Wide range of food sources

Question 2

Why is there a high prevalence of Ascaris lumbricoides?

Answer 2

Resistance of eggs to harsh conditions
Wide spread distribution
High number of eggs
Poor socioeconomic conditions
Lack of education

Question 3

Do nematodes undergo asexual reproduction?

Answer 3

No

Question 4

What life cycle do Ascaris lymbricoides life cycle?

Answer 4

Direct life cycle

Question 5

Where is Ascaris lumbricoides?

Answer 5

Africa, South America, Asia

Question 6

Describe the 3 stages of pathology of Ascaris lymbricoides

Answer 6

Pathology associated with ingestion of larvae
Adult worm in the intestine
Wandering outside the intestine

Question 7

How is Ascaris lymbricoides diagnosed?

Answer 7

Coprological; eggs in faeces
Serological; detect antibodies
Molecular; PCR of parasite DNA
Image based; radiology

Question 8

What is the life cycle of Wuchereia bancrofti?

Answer 8

Vector transmitted

Question 9

What are the clinical presentations of Wuchereia bancrofti?

Answer 9

Lymphoedema

Swelling

Question 10

How can Wuchereia bancrofti be managed?

Answer 10

Surgery

Exercise

Question 11

How can you prevent Wuchereia bancrofti?

Answer 11

Sleep under nets
Long sleeved protective clothing
Mosquito repellent