| VAC | <abbreviation> Ventriculoatrial conduction. (05 Mar 2000) |
|---|---|
| vacation | 1. The act of vacating; a making void or of no force; as, the vacation of an office or a charter. 2. Intermission of a stated employment, procedure, or office; a period of intermission; rest; leisure. "It was not in his nature, however, at least till years had chastened it, to take any vacation from controversy." (Palfrey) Hence, specifically: - Intermission of judicial proceedings; the space of time between the end of one term and the beginning of the next; nonterm; recess. "With lawyers in the vacation." The intermission of the regular studies and exercises of an educational institution between terms; holidays; as, the spring vacation. The time when an office is vacant; especially. The time when a see, or other spiritual dignity, is vacant. Origin: F, fr. L. Vacatio a being free from a duty, service, etc, fr. Vacare. See Vacate. Source: Websters Dictionary (01 Mar 1998) |
| vaccenic acid | CH3(CH2)5CH==CH(CH2)9COOH; n-trans-11-octadecenoic acid;an unsaturated fatty acid of which both cis and trans isomers are found in butter and other animal fats. (05 Mar 2000) |
| vaccina | <medicine> Vaccinia. Source: Websters Dictionary (01 Mar 1998) |
| vaccinal | <medicine> Of or pertaining to vaccinia or vaccination. Source: Websters Dictionary (01 Mar 1998) |
| vaccinate | To administer a vaccine. (05 Mar 2000) |
| vaccination | <procedure> The introduction of vaccine into the body for the purpose of inducing immunity. Coined originally to apply to the injection of smallpox vaccine, the term has come to mean any immunising procedure in which vaccine is injected. Origin: L. Vacca = cow (18 Nov 1997) |
| vaccination, anthrax | A series of six shots over six months and booster shots annually, the anthrax vaccine now in use in the usa was first developed in the 1950s and approved by the food and drug administration for general use in 1970. It is produced by the michigan biologic products institute of michigan's department of health and is given routinely to veterinarians and others working with livestock. In december, 1997 it was announced that all us military would receive the vaccine, as do the military in the uk and russia, the reason being concern that anthrax might be used in biologic warfare. (12 Dec 1998) |
| vaccination, chickenpox | This vaccine prevents the common disease known as chickenpox (varicella zoster). While chickenpox is often considered a trivial illness, it can cause significant lost time on the job and in school and have serious complications including ear infections, pneumonia, and infection of the rash with bacteria, inflammation of the brain (encephalitis) leading to difficulty with balance and coordination (cerebellar ataxia), damaged nerves (palsies), and reye's syndrome, a potentially fatal complication. The vaccination requires only one shot given at about a year of age. If an older person has not had chickenpox, the shot may be given at any time. There have been few significant reactions to the chickenpox vaccine. All children, except those with a compromised immune system, should have the vaccination. (12 Dec 1998) |
| vaccination, children's | In the United States, it is recommended that all children receive vaccination against: - hepatitis b - diphtheria, tetanus, pertussis - haemophilus influenzae type b (hib), poliovirus, measles, mumps, rubella, varicella zoster virus (chickenpox). Every child in the u.s. Should have these vaccinations except when there are special circumstances and the child's doctor advises specifically against a vaccination. (12 Dec 1998) |
| vaccination, dpt | DPT immunization protects from diphtheria, pertussis (whooping cough), and tetanus and is given in a series of 5 shots at 2, 4, 6, 18 months of age and 4-6 years of age. Thanks to vaccination programs, these diseases have become less common. However, there are still unvaccinated individuals capable of carrying and passing diphtheria and pertussis to others who are not vaccinated. Tetanus bacteria are prevalent in natural surroundings, such as contaminated soil. See also vaccination, dtap. (12 Dec 1998) |
| vaccination, dt | DT (diphtheria and tetanus) vaccine does not protect from pertussis and is usually reserved for individuals who have had a significant adverse reaction to a dpt shot or who have a personal or family history of a seizure disorder or brain disease (12 Dec 1998) |
| vaccination, dtap | Like DPT, DTaP protects from diphtheria, pertussis (whooping cough) and tetanus. Dtap is the same as dtp, except that it contains only acellular pertussis vaccine which is thought to cause fewer of the minor reactions associated with immunization and is also probably less likely to cause the more severe reactions occasionally seen following pertussis vaccination. Dtap is currently recommended only for the shots given at 18 months and 4-6 years of age. (12 Dec 1998) |
| vaccination, german measles | See Vaccination, MMR. (12 Dec 1998) |
| vaccination, haemophilus influenzae type b | See vaccination, hib. (12 Dec 1998) |