Comparative Immunology, Microbiology and Infectious Diseases
Respiratory infections of sheep
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Cited by (51)
Experimental infection of specific-pathogen-free domestic lambs with Mycoplasma ovipneumoniae causes asymptomatic colonization of the upper airways that is resistant to antibiotic treatment
2022, Veterinary MicrobiologyCitation Excerpt :A limitation of using nasal washes as a source of M. ovipneumoniae is that the exact bacterial strain and its characteristics remain unknown, and infections with multiple strains of M. ovipneumoniae or other pathogenic contaminants cannot be excluded. With regard to the hypothesis that age-related differences are crucial, it is generally accepted that clinical infections with M. ovipneumoniae most commonly occur in lambs under one year of age, while adult sheep serve as asymptomatic M. ovipneumoniae carriers (Martin, 1996; USDA, 2013). Plowright et al. (2017) showed that, in bighorn sheep, prevalence of M. ovipneumoniae was highest in lambs and aged animals, but low in adults, pointing to age-dependent infection dynamics.
Pharmacokinetics of marbofloxacin following intramuscular administration at different doses in sheep
2019, Small Ruminant ResearchCitation Excerpt :The t1/2λz and ClT of MBX in the 10 mg/kg dose group were significantly different from 2, 4, and 6 mg/kg dose groups (p < 0.05). Lower respiratory tract infections, such as pneumonia, which caused economic loss because of excessive weight loss and infertility, are important respiratory diseases in sheep (Bell, 2008; Martin, 1996). The occurrence rate of bacterial pneumonia results from a complex interaction of infectious agents (M. haemolytica and P. multocida) in sheep, and antimicrobial drugs are used to treat this infections (Alley, 2002).
Investigation on mycoplasma populations in pneumonic dairy lamb lungs using a DNA microarray assay
2017, Small Ruminant ResearchCitation Excerpt :Aggravation of the disease, represented by pleuritis, lung consolidation, pulmonary abscesses and acute fibrinous pneumonia, can lead to death of the animal with high economic losses for the farmer, to which contribute also reduced feed efficiency, as well as expenses related to prevention and treatment measures (Ayling and Nicholas, 2007). Many pathogens are involved in sheep pneumonia, such as viruses, parasites, chlamydiae and mycoplasmas (Aytuğ, 1987; Martin, 1983, 1996). The bacteria most frequently isolated from pneumonic lungs in both sheep and lambs are Mycoplasma (M.) ovipneumoniae, Mannheimia (Ma.)
Role of Bibersteinia trehalosi, respiratory syncytial virus, and parainfluenza-3 virus in bighorn sheep pneumonia
2013, Veterinary MicrobiologyCitation Excerpt :Although we could not isolate any respiratory viruses from our captive BHS herd, PI-3- and RSV-neutralizing antibodies have been detected frequently in serum from these animals (Dassanayake et al., 2010b; Tables 3A and 3B). Furthermore, antibodies against RSV and PI-3 have been detected much more frequently in BHS herds than those against BHV-1 and BVDV (Martin, 1996; Masot et al., 2000) which prompted us to determine the role of RSV and PI-3 in this study. It was logical to use an RSV isolate of BHS origin.