Use the sources below to learn more about African trypanosomiasis. \"Parasites-A

Question

Use the sources below to learn more about African trypanosomiasis. "Parasites-African Trypanosomiasis, " Centers for Disease Control and Prevention http://www.cdc.gov/parasites/sleepingsickness/"Trypanosomiasis, African, " World Health Organization (WHO) http://www.who.int/topics/trypanosomiasis_african/en/After thoroughly investigating these and other relevant sources, answer the questions below. What is a protozoan? How is a protozoan parasite different from bacteria and multi-celled parasites such as intestinal worms? How does T. brucei differ from the closely related American trypanosome T. cruzi, the causative agent of Chagas disease, and from the P. falciparum parasite that causes malaria? Describe notable differences in morphology, life cycle, infectivity, transmission, geographical range, disease presentation, and treatment. How do people become infected with T. brucei? What are the risk factors as far as behavior, lifestyle, and geographic location? What are the clinical manifestations and symptoms of African trypanosomiasis? Compare and contrast these with the symptoms of malaria. Why does T brucei infection cause the symptoms that led to the term "African Sleeping Sickness"? How is T. brucei infection diagnosed? What factors often make diagnosis difficult?

Explanation / Answer

Protozoa are non phototrophic , unicellular , eukaryotic microorganism with no cell walls. Protozoa are diverse group of eukaryotic organism .

Bacteria comes under prokaryotes while protozoa comes under eukaryotic

Bacteria lack nucleus while protozoa has nucleus

Protozoa has mitochondria while bacteria lack.

Trypanosoma brucei causes sleeping sickness caused by tse tse fly.it require two host tse tse fly and humans to complete its life cycle. T.cruzi require Chagas disease transmitted by animal and people by insect vector.It causes fever , swelling and rashes. It is treated by drug like benznidazole and nifurtimox.

Plasmodium falciperum causes malaria in humans require Anopheles mosquito .It require two host mosquito and humans to complete its life cycle.It causes fever in humans and treated by antimalarial drug quinine.

Answer 2. It is infected by tse tse fly. T.cruzi causes Chagas disease it is a tropical parasite disease and it causes rashes of skin and swelling and fever

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