Herd immunity Health Dictionary

Herd Immunity: From 2 Different Sources


A level of immunity found in a community of animals/humans and related to a particular infection to which the community has been exposed.
Health Source: Dictionary of Tropical Medicine
Author: Health Dictionary
the immunity of a group, community, or population to an infectious disease as a result of mass vaccination. The higher the percentage of the population vaccinated, the greater will be the resistance to the spread of infection within the population.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Immunity

The ability to resist infection and to heal. The process may involve acquired immunity, (the ability to learn and remember a specific infectious agent), or innate immunity (the genetically programmed system of responses that attack, digest, remove, and initiate inflammation and tissue healing).... immunity

Cell-mediated Immunity

A defence mechanism involving the coordinated activity of two subpopulations of TLymphocytes, helper T-Cells and killer T-Cells. Helper T-Cells produce a variety of substances that stimulate and regulate other participants in the immune response. Killer T-Lymphocytes destroy cells in the body that bear foreign antigens (e.g. cells that are infected with viruses or other microorganisms).... cell-mediated immunity

Immuno- Combining Form Denoting Immunity Or Immunological Response.

... immuno- combining form denoting immunity or immunological response.
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