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yellow fever

(Encyclopedia)yellow fever, acute infectious disease endemic in tropical Africa and many areas of South and Central America. Yellow fever is caused by a virus transmitted by the bite of the female Aedes aegypti mos...

hay fever

(Encyclopedia)hay fever, seasonal allergy causing inflammation of the mucous membranes of the nose and eyes. It is characterized by itching about the eyes and nose, sneezing, a profuse watery nasal discharge, and t...

valley fever

(Encyclopedia)valley fever: see coccidioidomycosis. ...

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