EXAM #3 TERMS

The protein coat or shell that surrounds a virion’s nucleic acid.

The virus nucleicacid strand that is equivalent in base sequence to viral mRNA.

The death or decay of tissue in a particular part of the body, as from loss of blood supply, burning, etc.

An antigen-presenting cell that has long membrane extentions resembling the dendrites of neurons. Found in the lymph nodes, spleen, and thymus, skin and other tissues.

Microbial flora harbored by normal, healthy individuals living in a particular region.

A graft of tissue that is obtained from a donor genetically identical to the recipient.

A graft of tissue that is obtained from a donor genetically identical to the recipient.

The host on/in which a parasite either attains sexual maturity or reproduces.

The virus is almost always detectible and clinical symptoms may be either mild or absent for long periods. Persisting over a long period of time.

An infection restricted to a limited region or to one or more anatomical areas.

Developed during a stay at a hospital or other clinical care facility

An example of an atopic allergy involving the lower respiratory tract.

In genetics it is a DNA molecule that can replicate and transport a piece of inserted foreign DNA, such as gene, into a recipient cell. In epidemiology, it is a living organism, usually an arthropod or other animal, that transfers an infective agent between host.

The degree or intensity of pathogenicity of an organism as indicated by case fatality rates and or ability to invade host tissues and cause disease.

a state of unresponsiveness to antigens. Absence of the ability to generate a sensitivity reaction to substances that are expected to be antigenic.