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Questions and Answers
Which of the following is true about arboviruses?
Which of the following is true about arboviruses?
- Arboviruses are transmitted by protozoa
- Arboviruses are transmitted by arthropods (correct)
- Arboviruses are transmitted by bacteria
- Arboviruses are transmitted by ticks
What is the family and genus of the virus that causes yellow fever?
What is the family and genus of the virus that causes yellow fever?
- Family Arboviridae, genus Flavivirus
- Family Flaviviridae, genus Arbovirus
- Family Flaviviridae, genus Flavivirus (correct)
- Family Arboviridae, genus Arbovirus
How is the yellow fever virus primarily transmitted?
How is the yellow fever virus primarily transmitted?
- Through direct contact with an infected person
- Through the bite of the yellow fever mosquito Aedes aegypti (correct)
- Through the bite of sandflies
- Through the bite of ticks
Where does the yellow fever virus replicate in mosquitoes?
Where does the yellow fever virus replicate in mosquitoes?
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What is the mode of transmission for yellow fever virus from an infected person to a mosquito?
What is the mode of transmission for yellow fever virus from an infected person to a mosquito?
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Study Notes
Arboviruses Overview
- Arboviruses are arthropod-borne viruses responsible for diseases transmitted by vectors such as mosquitoes and ticks.
- They can cause significant morbidity and mortality in humans and animals.
Yellow Fever Virus
- Belongs to the family: Flaviviridae.
- Classified under the genus: Flavivirus.
Transmission of Yellow Fever Virus
- Primarily transmitted through the bite of infected Aedes and Haemagogus mosquitoes.
- The virus can also be spread through human-to-mosquito transmission, particularly when a mosquito bites an infected human.
Replication in Mosquitoes
- Yellow fever virus replicates in the salivary glands of mosquitoes, allowing it to be transmitted efficiently during subsequent bites.
Mode of Transmission to Mosquitoes
- An infected person can transmit the virus to mosquitoes through blood, enabling the mosquitoes to carry the virus to other individuals during feeding.
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