After Biting a Bird, a Mosquito Becomes Infected with West

question 41

Multiple Choice

After biting a bird, a mosquito becomes infected with West Nile virus. It then it bites a human and transfers West Nile virus into the human's bloodstream. Which organism(s) is the vector in this case?

• A)human only
• B)mosquito only
• C)bird only
• D)mosquito and bird
• E)mosquito and human

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