The vector reservoir for agents causing viral encephalitis in the United States is:
a. Tarantula spiders. c. Carnivorous wild animals.
b. Mosquitoes and ticks. d. Domestic and wild animals.
ANS: B
Viral encephalitis, not attributable to a childhood viral disease, is usually transmitted by mosquitoes and ticks. The vector reservoir for most agents pathogenic for humans and detected in the United States are mosquitoes and ticks; therefore, most cases of encephalitis appear during the hot summer months. Tarantulas, carnivorous wild animals, and domestic animals are not reservoirs for the agents that cause viral encephalitis.
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