Occurrence of some viruses and bacteria involved in respiratory diseases of ruminants in Hungary

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Abstract

Serological surveys, virological and bacteriological investigations were carried out on large populations of lambs and calves kept in intensive fattening units on Hungarian large-scale farms, in order to study the occurrence of viruses and bacteria involved in the respiratory disease complex. The investigations were carried out in stocks where 5-20% of the young animals succumbed to acute or chronic pneumonia every year. Serological surveys revealed that seropositivity to bovine adenovirus type 2 (BAV-2) and parainfluenza type 3 (PI-3) were the most widespread viral infections both in cattle and sheep (BAV-2: 56% and 88%, PI-3: 76% and 41%, respectively). Antibodies against infectious bovine rhinotracheitis virus (BHV-1) were also found in a high proportion (45%) of sera of 3-8 month old calves, while in 2-6 month old lambs ovine adenovirus 1 (OAV-1) was the third most frequent virus (22%). Bacteriological investigations demonstrated secondary infections caused by different Pasteurella haemolytica and Pasteurella multocida serotypes in most cases. In cattle herds P. multocida A proved to be the predominant bacterium: it was isolated in each herd examined, while P. haemolytica A1 strains were isolated in 7 and Haemophilus somnus in 2 out of 13 herds. In sheep flocks P. haemolytica was the most frequent species isolated, 10 serotypes were cultured from pneumonic sheep but serotypes A2, A1 and A8 were the dominant ones.

Original languageEnglish
Pages (from-to)405-414
Number of pages10
JournalActa Veterinaria Hungarica
Volume46
Issue number4
Publication statusPublished - 1998

Fingerprint

Hungary
Ruminants
Mannheimia haemolytica
respiratory tract diseases
ruminants
Sheep
Adenoviridae
Viruses
Bacteria
Pasteurella multocida
Paramyxoviridae Infections
viruses
serotypes
cattle
herds
bacteria
serological surveys
Ovine adenovirus B
sheep
Haemophilus somnus

Keywords

  • Adenovirus
  • Cattle
  • Haemophilus somnus
  • Hungary
  • IBR
  • Infectious bovine rhinotracheitis
  • Parainfluenza-3 virus
  • Pasteurella haemolytica
  • Pasteurella multocida
  • Reovirus
  • Respiratory diseases
  • Sheep

ASJC Scopus subject areas

  • veterinary(all)

Cite this

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title = "Occurrence of some viruses and bacteria involved in respiratory diseases of ruminants in Hungary",
abstract = "Serological surveys, virological and bacteriological investigations were carried out on large populations of lambs and calves kept in intensive fattening units on Hungarian large-scale farms, in order to study the occurrence of viruses and bacteria involved in the respiratory disease complex. The investigations were carried out in stocks where 5-20{\%} of the young animals succumbed to acute or chronic pneumonia every year. Serological surveys revealed that seropositivity to bovine adenovirus type 2 (BAV-2) and parainfluenza type 3 (PI-3) were the most widespread viral infections both in cattle and sheep (BAV-2: 56{\%} and 88{\%}, PI-3: 76{\%} and 41{\%}, respectively). Antibodies against infectious bovine rhinotracheitis virus (BHV-1) were also found in a high proportion (45{\%}) of sera of 3-8 month old calves, while in 2-6 month old lambs ovine adenovirus 1 (OAV-1) was the third most frequent virus (22{\%}). Bacteriological investigations demonstrated secondary infections caused by different Pasteurella haemolytica and Pasteurella multocida serotypes in most cases. In cattle herds P. multocida A proved to be the predominant bacterium: it was isolated in each herd examined, while P. haemolytica A1 strains were isolated in 7 and Haemophilus somnus in 2 out of 13 herds. In sheep flocks P. haemolytica was the most frequent species isolated, 10 serotypes were cultured from pneumonic sheep but serotypes A2, A1 and A8 were the dominant ones.",
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AU - Fodor, L.

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