Definitions for "Viral Infection"
infection by a virus that is pathogenic to humans
An infection caused by a virus. A virus cannot replicate without a host cell and is not typically considered to be a living organism - unlike bacteria, which can be free-living.
An infection involving a virus, the smallest disease causing organism. Viruses can be harmless (e.g. warts), or devastating (e.g. the aids virus).
a major cause of asthma, so viral rhinitis may be a prelude to asthma attacks in susceptible patients (mainly people who already have a history of asthma)