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Titolo:
BOVIGAM (TM): an in vitro cellular diagnostic test for bovine tuberculosis
Autore:
Wood, PR; Jones, SL;
Indirizzi:
CSL Anim Hlth, Res & Dev, Parkville, Vic 3052, Australia CSL Anim Hlth Parkville Vic Australia 3052 Parkville, Vic 3052, Australia
Titolo Testata:
TUBERCULOSIS
fascicolo: 1-2, volume: 81, anno: 2001,
pagine: 147 - 155
SICI:
1472-9792(2001)81:1-2<147:B(AIVC>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERFERON-GAMMA PRODUCTION; BLOOD MONONUCLEAR-CELLS; RESPIRATORY SYNCYTIAL VIRUS; HUMORAL IMMUNE-RESPONSES; LINKED-IMMUNOSORBENT-ASSAY; TEST-NEGATIVE CATTLE; MYCOBACTERIUM-BOVIS; T-CELL; PERIPHERAL-BLOOD; IFN-GAMMA;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
139
Recensione:
Indirizzi per estratti:
Indirizzo: Wood, PR CSL Anim Hlth, Res & Dev, 45 Poplar Rd, Parkville, Vic 3052, Australia CSL Anim Hlth 45 Poplar Rd Parkville Vic Australia 3052 Australia
Citazione:
P.R. Wood e S.L. Jones, "BOVIGAM (TM): an in vitro cellular diagnostic test for bovine tuberculosis", TUBERCULOSI, 81(1-2), 2001, pp. 147-155

Abstract

BOVIGAM (TM) which is based on the detection of gamma interferon (IFN-gamma) is a rapid, laboratory assay of a cell mediated immune response that maybe used for the detection of tuberculosis (TB) infection in animals. Wholeblood is first incubated overnight with bovine PPD, avian PPD or negative control antigens, and IFN-gamma in the supernatant plasma is then measured by EIA. TB infection is indicated by a predominant IFN-gamma response to bovine PPD. Since 1988, BOVIGAM (TM) has been extensively trialed on more than 200 000 cattle in Australia, Brazil, Ireland, Northern Ireland, Italy, New Zealand, Romania, Spain and the USA. Sensitivity has varied between 81.8%and 100% for culture-confirmed bovine TB and specificity between 94% and 100%. The IFN-gamma assay detects M. bovis infection earlier than the skin test and in New Zealand is applied to detect skin-test negative cattle with TB, where after slaughter a significant number of IFN-gamma reactors have TB. BOVIGAM (TM) is also approved in New Zealand for serial testing skin test positive cattle when non-specificity is suspected. Cattle are tested 7-30days after a positive caudal fold test. The boosting effect of the skin test on T-cell activity allows blood to be cultured with PPD up to 30 h aftercollection without effecting accuracy. The BOVIGAM (TM) results are not affected by poor nutritional condition and are only mildly and briefly affected by dexamethasone treatment and parturition. IFN-gamma responses of cattle vaccinated with BCG are dose-dependent and short-lived. The BOVIGAM (TM) kit is now used routinely in many countries for the detection of M. bovis infected cattle, buffalo and goats. (C) 2001 Harcourt Publishers Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/10/20 alle ore 10:00:17