Multiple Choice
Which statement best explains why viruses are considered non-living entities?
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1. Introduction to Microbiology
Acellular Infectious Agents: Viruses, Viroids & Prions
Multiple Choice
Which organism acts as the vector for the transmission of sleeping sickness (African trypanosomiasis)?
A
Ixodes tick
B
Sandfly (Phlebotomus spp.)
C
Tsetse fly (Glossina spp.)
D
Anopheles mosquito
Verified step by step guidance1
Understand the term 'vector' in microbiology: a vector is an organism that transmits a pathogen from one host to another, facilitating the spread of disease.
Identify the disease in question: sleeping sickness, also known as African trypanosomiasis, is caused by the parasite Trypanosoma brucei.
Recall the specific vector associated with African trypanosomiasis: the disease is transmitted by a particular insect that carries the Trypanosoma parasite.
Review the options given: Ixodes tick, Sandfly (Phlebotomus spp.), Tsetse fly (Glossina spp.), and Anopheles mosquito, and consider which is known to transmit Trypanosoma brucei.
Conclude that the Tsetse fly (Glossina spp.) is the correct vector because it is the insect responsible for transmitting the parasite that causes sleeping sickness.
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