One is supposedly impersonal and medical: West Nile Virus encephalitis.

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The first lady's comments came as residents of New York City and surrounding communities dealt with an outbreak of a West Nile-like encephalitis virus that has killed six people.

CNN: By FRANK BUCKLEY/

He said doctors in Florida tested the donor for various causes of encephalitis, including West Nile Virus and herpes, but did not test for rabies.

CNN: CDC: Man died of rabies from kidney transplant