| faucial diphtheria | Severe pharyngitis affecting the fauces, the usual site affected by infection with Corynebacterium diphtheriae. (05 Mar 2000) |
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| faucial | <anatomy> Pertaining to the fauces; pharyngeal. Source: Websters Dictionary (01 Mar 1998) |
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| faucial branches of lingual nerve | <anatomy, nerve> The faucial branches, branches to the isthmus of the fauces from the lingual nerve. Synonym: rami isthmi faucium nervi lingualis, rami fauciales nervi lingualis. (05 Mar 2000) |
| faucial paralysis | Paralysis of the velum pendulum palati and the muscles forming the anterior pillars of the fauces. Synonym: faucial paralysis, isthmoplegia. Origin: G. Isthmos, isthmus, + paralysis (05 Mar 2000) |
| faucial reflex | Contact of a foreign body with the mucous membrane of the fauces causes retching or gagging. Synonym: faucial reflex. (05 Mar 2000) |
| faucial tonsil | A large oval mass of lymphoid tissue embedded in the lateral wall of the oral pharynx on either side between the pillars of the fauces. Synonym: tonsilla palatina, tonsilla, faucial tonsil, tonsil. (05 Mar 2000) |
| avian diphtheria | An infection by the fowlpox virus in which tracheal involvement is especially severe. See: fowlpox. Synonym: fowl diphtheria. (05 Mar 2000) |
| calf diphtheria | A necrotic oropharyngolaryngitis of calves associated with Fusobacterium necrophorum infection that may spread to the lungs. (05 Mar 2000) |
| cutaneous diphtheria | An ulcer resulting from infection of the skin by Corynebacterium diphtheriae; systemic manifestations are the same as those of pharyngeal diphtheria. (05 Mar 2000) |
| diagnostic diphtheria toxin | Corynebacterium diphtheriae toxin diluted so that the inoculated dose (0.1 or 0.2 ml) will contain 1/50 th of guinea pig minimal lethal dose. See: Schick test. Synonym: diagnostic diphtheria toxin. (05 Mar 2000) |
| diphtheria | <infectious disease> An acute infectious disease caused by toxigenic strains of Corynebacterium diphtheriae, acquired by contact with an infected person or a carrier of the disease, which is usually confined to the upper respiratory tract. It is characterised by the formation of a tough membrane (false membrane or pseudomembrane) attached firmly to the underlying tissue that will bleed if forcibly removed. In the most serious infections the membrane begins in the tonsillar (faucial) area on one tonsil and may spread to involve the other tonsil, uvula, soft palate and pharyngeal wall, from where it may extend to the larynx, trachea and bronchial tree and may cause bronchial obstruction and death by hypoxia. Diphtheria also occurs in a cutaneous form and may rarely involve the eyes, middle ear, buccal mucosa, genitalia and umbilical stump, usually secondarily. Systemic effects, chiefly myocarditis and peripheral neuritis, are caused by the exotoxin produced by C. Diphtheriae. Synonym: Bretonneau's angina. Origin: Gr. Diphthera = leather (18 Nov 1997) |
| diphtheria antitoxin | An equine antitoxin against the toxin of corynebacterium diphtheriae, used for the treatment of diphtheria. It is to be differentiated from diphtheria toxoid which is used for the prevention of diphtheria. (12 Dec 1998) |
| diphtheria antitoxin unit | The antitoxin activity of 0.0628 mg standard diphtheria antitoxin. (05 Mar 2000) |
| diphtheria-tetanus-pertussis vaccine | A vaccine consisting of diphtheria toxoid, tetanus toxoid, and pertussis vaccine. It is usually given to infants three times at two-month intervals, generally at 2, 4, and 6 months of age. The vaccine protects against diphtheria, tetanus, and whooping cough. In most cases the vaccine causes only a temporary fever and discomfort, but in a few cases serious neurological side effects have been observed. (12 Dec 1998) |
| diphtheria toxin | <protein> An ab exotoxin (62 kD) coded by _ corynephage of virulent Corynebacterium diphtheriae strains (that can produce a repressor of toxin production). The B subunit binds to receptors on the surface of the target cell and facilitates the entry of the enzymically active A subunit (21 kD) that ADP ribosylates elongation factor 2, thereby halting mRNA translation. (18 Nov 1997) |
| diphtheria toxoid | The formaldehyde-inactivated toxin of corynebacterium diphtheriae. It is generally used in mixtures with tetanus toxoid and pertussis vaccine (dtp) or with tetanus toxoid alone (dt for paediatric use and td, which contains 5- to 10-fold less diphtheria toxoid, for other use). Diphtheria toxoid is used for the prevention of diphtheria; diphtheria antitoxin is for treatment. (12 Dec 1998) |