inheres in role host role 30 Mar09 submitted by vaccine community 30Mar09 virus reproducing inside a cell; bacteria causing a disease, host can be harmed or not. we want to avoid a cat sitting on my lap and an animal care technician; these are not examples or hosts; dental cares = on tooth, but part of outer layer of tooth, so covered by "within" in the definition GROUP: Role Branch In biology, a host is an organism that harbors a virus or parasite, or a mutual or commensal symbiont, typically providing nourishment and shelter. http://en.wikipedia.org/wiki/Host_(biology) 30 March 09 OBI host role host role is a role played by an organism and realized by providing nourishment, shelter or a means of reproduction to another organism within the organism playing the host role http://en.wikipedia.org/wiki/Host_(biology) organism metadata complete