influenza or flu
(in\'flu-en\'zah)
An acute viral infection of the respiratory tract, occurring in isolated cases, epidemics, and pandemics. Influenza is caused by three strains of influenza virus, labeled types A, B, and C, based on the antigens of their protein coats.

Microbiology. . 2009.

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  • Influenza — In flu*en za, n. [It. influenza influence, an epidemic formerly attributed by astrologers to the influence of the heavenly bodies, influenza. See {Influence}.] (Med.) An epidemic viral infectious disease characterized by acute nasal catarrh, or… …   The Collaborative International Dictionary of English

  • flu — ► NOUN ▪ influenza or any similar, milder infection …   English terms dictionary

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  • influenza — influenzal, adj. influenzalike, adj. /in flooh en zeuh/, n. 1. Pathol. an acute, commonly epidemic disease, occurring in several forms, caused by numerous rapidly mutating viral strains and characterized by respiratory symptoms and general… …   Universalium

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