What Causes Infections?. Infections are caused by one of four life forms:Virus75% or more of all infectionsBacterialess than 25%Parasitesless than 1% in the USFungusless than 1% in the US. . Virus: Can live in the environment for yearsAttack humans by invading cells of certain organs Hepatitis virus: attacks the liver cellsEncephalitis virus: attacks the brain cellsCold virus: attacks the throat and breathing passagesDiarrhea virus: attacks the small intestineCannot reproduce 1142
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.