Bovine respiratory syncytial virus (BRSV) and related human respiratory syncytial virus (HRSV) are major respiratory tract pathogens in calves and infants, respectively. Great a�ention is now paid to prevention of the disease caused by these agents. Glycoprotein G is the most variable viral protein and antigenic grouping of RSV isolates is based on distinct antigenic reactivity pa�erns determin...

Infectious reproductive diseases have great potential to create significant damaging effects to reproductive efficiency and therefore profitability for the beef herd. Pathogens causing reproductive diseases include: bovine viral diarrhea (BVD), infectious bovine rhinotracheitis (IBR), Leptospira, Tritrichomonas foetus, Campylobacter fetus subsp. venerealis (“vibrio”) and Neospora caninum, among...

There are severe cattle-specific viral (foot and mouth, vesicular stomatitis, rinderpest, rift valley fever, malignant catarrhal lumpy skin, rabies, bovine leukosis, diarrhea, spongiform encephalopathy), bacterial (tuberculosis, black quarter, botulism, oedema, leptospirosis, brucellosis, anthrax, hemogenic septicemia, actinomycosis, actinobacillosis, mastitis, metritis), parasitic (lungworm, f...

Bovine viral diarrhea virus (BVDV) plays a key role in bovine respiratory disease complex, which can lead to pneumonia, diarrhea and death of calves. Current vaccines are not very effective due, in part, to immunosuppressive traits and failure to induce broad protection. There are diverse BVDV strains and thus, current vaccines contain representative genotype 1 and 2 viruses (BVDV-1 & 2) to bro...

The high prevalence of inflammatory diseases the upper respiratory tract brings this pathology to forefront, occupying up 90% cases contacting specialists among all infectious diseases. main etiological factor in occurrence acute tract, such as rhinitis, rhinosinusitis, pharyngitis, is defeat a viral agent. At same time, damaging agents are extremely diverse. In turn, an incorrectly selected in...

Acute respiratory viral infections are the most common human diseases. Symptoms of infection vary from a slight cold to critical condition requiring artificial lung ventilation and support cardiovascular system. Main risk factors severe disease include high load, co-infection with other pathogens, age 0 2 years older than 65 years, immunodeficiency. Cardiac manifestations usually caused by indi...

BACKGROUND Bovine respiratory syncytial virus (BRSV) is one of the major pathogens involved in the bovine respiratory disease (BRD) complex. The seroprevalence to BRSV in Norwegian cattle herds is high, but its role in epidemics of respiratory disease is unclear. The aims of the study were to investigate the etiological role of BRSV and other respiratory viruses in epidemics of BRD and to perfo...

Bovine herpesvirus 1 (BHV-1) belongs to the Varicellovirus genus, Herpesviridae family and causes different respiratory, reproductive and nervous system disorders in cows, including infectious bovine rhinotracheitis (IBR). For determination of the genetic relationship of gB and gD – two of main BHV-1 glycoprotein genes in Iran with those in other countries, DNA fragments of 671 bp corresponding...

Pathogens causing bovine respiratory tract disease in Finland were investigated. Eighteen cattle herds with bovine respiratory disease were included. Five diseased calves from each farm were chosen for closer examination and tracheobronchial lavage. Blood samples were taken from the calves at the time of the investigation and from 86 calves 3-4 weeks later. In addition, 6-10 blood samples from ...