Glossary of Terms

Common terms that you may encounter on the site.


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A (9) | B (2) | C (2) | D (2) | E (6) | G (1) | H (2) | I (8) | K (1) | L (1) | M (2) | P (5) | R (1) | S (5) | T (4) | U (1) | V (6)

  • Diphtheria

    An infectious disease caused by the bacteria Corynebacterium diphtheriae. Diphtheria is transmitted from person to person, usually via respiratory droplets. The most notable feature of diphtheria infection is the formation of a thick gray substance called a pseudomembrane over the nasal tissues, tonsils, larynx, and/or pharynx.

  • DNA vaccine

    A vaccine made from sections of a pathogen’s DNA. Once injected, the host creates proteins that stimulate an immune response against the pathogen. Several veterinary DNA vaccines are licensed in the United States.