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Titolo:
Respiratory disease caused by bovine viral diarrhoea virus
Autore:
Baule, C; Kulcsar, G; Mittelholzer, C; Alenius, S; Belak, K; Belak, S; Soos, T;
Indirizzi:
Natl Vet Inst, S-75007 Uppsala, Sweden Natl Vet Inst Uppsala Sweden S-75007 l Vet Inst, S-75007 Uppsala, Sweden Allatgyorgyaszati Oltoanyag Gyogyszer & Takarmany, H-1107 Budapest, Hungary Allatgyorgyaszati Oltoanyag Gyogyszer & Takarmany Budapest Hungary H-1107
Titolo Testata:
MAGYAR ALLATORVOSOK LAPJA
fascicolo: 5, volume: 121, anno: 1999,
pagine: 260 - 263
SICI:
0025-004X(199905)121:5<260:RDCBBV>2.0.ZU;2-M
Fonte:
ISI
Lingua:
HUN
Soggetto:
CATTLE; INFECTION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
16
Recensione:
Indirizzi per estratti:
Indirizzo: Baule, C Natl Vet Inst, S-75007 Uppsala, Sweden Natl Vet Inst Uppsala Sweden S-75007 t, S-75007 Uppsala, Sweden
Citazione:
C. Baule et al., "Respiratory disease caused by bovine viral diarrhoea virus", MAGY ALLATO, 121(5), 1999, pp. 260-263

Abstract

The biological characteristics of two bovine vit-al diarrhoea virus (BVDV)isolates belonging to Type 1 were studied in an experiment involving artificial infection of animals, with special regard to the clinical signs caused by the virus in calves, the appearance of seropositivity and the distribution of the virus in several organs. The viruses represent a new genetic cluster and were isolated in Southern Africa from cattle showing respiratory symptoms. After a latency period of 4-7 days, all of the 8 infected calves started to show clinical signs the most typical of which mere nasal and ocular discharge, coughing, laboured breathing and erosions in the oral mucosa The two:in-contact control animals also contacted the disease which indicates the potential of the virus to spread within herds. There was no difference in the severity of symptoms between the intravenously and intranasally infectedanimals. Antibodies detectable by ELISA appeared in all calves except in-contact controls. Viral nucleic acid was detected with RT-PCR in nasal swab, lymphocytes, nasal mucosa, lungs, tonsils and bone marrow, in a total of 16 samples. The experimental results support the assumption that the two BVDV isolates are adapted to the respiratory organs and are able to elicit symptoms of moderate severity in immunocompetent seronegative calves.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 18:48:26