Trypanosomes (Chagas and African Sleeping Sickness)

Question 1

Two types of sleeping sickness trypanosomes

Answer 1

Trypanosoma brucei gambiense

Trypanosoma brucei rhodesiense

Question 2

Features of T.b.gambiense

Answer 2

97% of cases
Chronic (several years)
Humans are the main reservoir
Central and West Africa

Question 3

Features of T.b.rhodesiense

Answer 3

3% of cases
Acute (few weeks)
Livestock are the main reservoir
Eastern and Southern Africa

Question 4

Where is sleeping sickness found?

Answer 4

Sub-Saharan Africa

Question 5

What defines the distribution of sleeping sickness?

Answer 5

Tsetse fly distribution (vector)

Question 6

What type of habitat are tsetse flies found in?

Answer 6

Savannah (rhodesiense transmitter)
Near water (gambiense transmitter)
Different species of fly for the different subspecies of T.brucei
() = [extra research]