Review questions

1. True/False Leishmania and Trypanosoma belong to different families.
   
   
   
2. Approximately how many people are infected with T. cruzi?
   a) 7-8 million
   b) 1-2 million
   c) 16-18 million
   d) 20-21 million
   
   
   
3. What is the causative agent of Chagas’ disease?
   a) Leishmania amazonensis
   b) Trypanosoma cruzi
   c) Trypanosoma brucei
   d) Eschicheria coli
   
   
4. What is the vector of T. cruzi?
   
   
   
5. Circle all the different forms of T. cruzi.
   Epimastigote
   Deltamastigote
   Phylomastigote
   Trypomastigote
   Amastigote
   Bimastigote
   
   
   
6. Where does T. cruzi replicate in the insect?
   
   
   
7. Why is the epimastigote form not infectious in humans?
   
   
   
8. Why is the trypomastigote form infectious in humans?
   
   
   
9. What is the main cause of sudden death in chronically infected people with Chagas’ disease?
   
   
   
10. What are the best ways to control the spread of T. cruzi?
    
    
    
11. True/False There are many different species of insects that can serve as vectors to transmit T. cruzi.
    
    
    
12. What are the critical issues that need to be addressed in regards to Chagas’ disease?
    
    
    
13. In the chronic phase of Chagas’ disease, at what point do symptoms like cardiomyopathy and megasyndrome develop?