Question:

Most of the non-persistent viruses are transmitted by:

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Non-persistent = "stylet-borne" viruses; Persistent = "circulative" viruses in insect vectors.
  • Weevils
  • Leaf beetles
  • Carrion Beetles
  • Aphids
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The Correct Option is A

Solution and Explanation


Non-persistent viruses:
Don't circulate in the insect body
Don't require incubation period
Transmitted during brief probing
Aphids (option 4) account for >50% of non-persistent virus transmissions
Beetles (options 1-3) typically transmit persistent viruses
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