introduction: today, air pollution is one of the critical problems in metropolitans and necessary preparations are needed for confronting with this crisis. the present study was based on the goal of determining the relation of air pollutant levels with the rate of emergency admission for respiratory and cardiovascular patients. methods: in the present retrospective cross- sectional study, all r...

The draft genome of a Mannheimia haemolytica serotype 6 isolate obtained from the nasopharynx of a feedlot calf with bovine respiratory disease is described.

conclusions respiratory disease, musculoskeletal pain, headache, and digestion problems were among the most important reasons of patients' referral to physicians in times of hajj. the mentioned complications could be prevented through correct trainings and conforming to health recommendations in times of hajj. results in general, medical data of 107074 cases had been registered in this software...

BACKGROUND Serological evidence for influenza A, subtype H1 and H3 virus infections of bovines, associated with respiratory disease and decreased milk production, has been reported. Equine H3N8 influenza virus circulates widely and was responsible for the introduction of H3N8 influenza into canines. OBJECTIVE To explore the possibility that equine H3N8 influenza might also infect bovines. M...

Bovine Parainfluenza Virus Type 3 (BPI3V) infections are often asymptomatic, causing respiratory tissue damage and immunosuppression, predisposing animals to severe bacterial pneumonia, the leading cause of Bovine Respiratory Disease (BRD) mortality. As with many pathogens, routine BPI3V serology does not indicate the presence of damaged respiratory tissue or active infection. In vitro proteomi...

The cattle market has set year-over-year record high prices since 2009. The increasing value of cattle has substantially increased the financial risk of feeding cattle, and has commensurately increased the economic losses from disease. As cattle feeding profitability continues to be challenged by the low margin between selling prices and operating costs, all facets of cattle feeding are being e...

BACKGROUND Bibersteinia trehalosi causes respiratory disease in ruminants particularly in wild and domestic sheep. Recently, there has been an increased number of B. trehalosi isolates obtained from diagnostic samples from bovine respiratory disease cases. This study evaluated the role of B. trehalosi in bovine respiratory disease using an intra-tracheal inoculation model in calves. Thirty six ...

Bovine herpesvirus (BoHV) type 1 is an important agricultural pathogen that infects cattle and other ruminants worldwide. Acute infection of the oro-respiratory tract leads to immune suppression and allows commensal bacteria to infect an otherwise healthy lower respiratory tract. This condition is known as the Bovine Respiratory Disease (BRD). BoHV-1 latently infects the host for life and perio...

Bovine respiratory syncytial virus (BRSV) is a respiratory pathogen of cattle that causes severe disease in calves alone and as one of several viruses and bacteria that cause bovine respiratory disease complex. Like human RSV this virus modulates the immune response to avoid stimulation of a vibrant CD8+ T cytotoxic cell response and instead promotes a Th2 response. The Th2 skew sometimes resul...