Viruses From Animal and Plants
West Nile virus can cause a disease in human beings that may be transmitted from an infected bird to a person by a mosquito. This is an example of

fomite borne disease
arthropod borne disease
nosocomial infection
endogenous infection

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Viruses From Animal and Plants
Negative strand ssRNA viruses need to have a preformed replicase when they invade a mammalian cell because they

have to make a positive strand copy that can be translated
use it to modify host enzymes that are recruited for viral replication
use it to terminate transcripts when they copy host cell mRNA
None of these

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