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Titolo:
SEROLOGIC EVIDENCE OF BRUCELLA SPP. EXPOSURE IN ATLANTIC WALRUSES (ODOBENUS-ROSMARUS-ROSMARUS) AND RINGED SEALS (PHOCA-HISPIDA) OF ARCTIC CANADA
Autore:
NIELSEN O; NIELSEN K; STEWART REA;
Indirizzi:
FISHERIES & OCEANS CANADA,INST FRESHWATER,CENT & ARCTIC REG,501 UNIV CRESCENT WINNIPEG MB R3T 2N6 CANADA AGR CANADA,ANIM DIS RES INST NEPEAN ON K2H 8P9 CANADA
Titolo Testata:
Arctic
fascicolo: 4, volume: 49, anno: 1996,
pagine: 383 - 386
SICI:
0004-0843(1996)49:4<383:SEOBSE>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
TARANDUS-GROENLANDICUS L; SUIS BIOVAR-4 INFECTION; BARREN-GROUND CARIBOU; MOOSE;
Keywords:
WALRUS; ODOBENUS ROSMARUS ROSMARUS; RINGED SEAL; PHOCA HISPIDA; BRUCELLA; BRUCELLOSIS; COMPETITIVE ELISA; TUBE AGGLUTINATION TEST;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
O. Nielsen et al., "SEROLOGIC EVIDENCE OF BRUCELLA SPP. EXPOSURE IN ATLANTIC WALRUSES (ODOBENUS-ROSMARUS-ROSMARUS) AND RINGED SEALS (PHOCA-HISPIDA) OF ARCTIC CANADA", Arctic, 49(4), 1996, pp. 383-386

Abstract

The first presumptive evidence of Brucella infection in marine mammals of Arctic Canada is reported. Blood samples were collected from 248 ringed seals (Phoca hispida) and 59 Atlantic walrus (Odobenus rosmarusrosmarus) from eight locations in the Canadian Arctic between 1987 and 1994. A competitive enzyme-linked immunosorbent assay (C-ELISA), using a specific monoclonal antibody to Brucella spp. cell wall components, was used to detect anti-Brucella spp. antibodies in the samples. Sera from ten seals and seven walruses exceeded the C-ELISA threshold that indicates that cattle have been exposed to Brucella spp. Five of the positive walrus sera were suitable for the tube agglutination test. All five were confirmed positive using this test. Although the bacterium has not yet been identified, it appears that a Brucella sp. or a Brucella-like bacterium may be enzootic in these species in the CanadianArctic. It is also possible that the very low prevalence of antibodies in ringed seals and the seemingly random distribution of seropositive animals may indicate a sporadic infection from another enzootically infected phocid or predator (e.g., Arctic fox Alopex lagopus). Or perhaps, limited epizootics may have occurred in the areas where seropositive seals were found. A similar situation could also exist in the walrus of Fore Basin.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 01:58:04