Respiratory Diseases

Peek, Simon F.; Ollivett, T. L.; Divers, Thomas J.

doi:10.1016/b978-0-323-39055-2.00004-8

Cited by 24 publications

(43 citation statements)

References 112 publications

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“…The present study revealed remarkable evidence in the distribution and occurrence of P. multocida infection in different agroecological regions of Ethiopia. Clinical ndings and lung lesion are consistent with clinical features associated with BRD as reported in previous studies [8,36]. In the current study, P. multocida was recovered from 61 (15.25%) of BRD cases.…”

Section: Discussionsupporting

confidence: 91%

“…Analysis of P. multocida infection in recent years indicated that the frequency of this pathogen ranges from 3.4% to 39.2% [22,24,25] in different study areas of Ethiopia. P. multocida could be found in mixed infections of the lung along with M. haemolytica, H. somni, T. pyogenes, B. trehalosi, Mycoplasma species, or various viruses of cattle [36]. Thus, the current nding suggests further investigation to isolate and identify other pathogens associated with bovine pneumonic cases.…”

Section: Discussionmentioning

confidence: 76%

“…Bovine respiratory disease (BRD) is an infectious respiratory disease of cattle with multifactorial causes that encompasses multiple viral and bacterial pathogens, a multitude of environmental and management factors and their interactions are responsible for the outbreak of disease [33,34]. The bacterial pathogens associated with BRD include P. multocida, Mannheimia haemolytica, Mycoplasma species, Histophilus somni, and Trueperella Pyogens [35,36]. Bibersteinia trehalosi is also considered as an emerging pathogen to cause BRD but not a primary pathogen to cause BRD [36].…”

Section: Discussionmentioning

confidence: 99%

“…The bacterial pathogens associated with BRD include P. multocida, Mannheimia haemolytica, Mycoplasma species, Histophilus somni, and Trueperella Pyogens [35,36]. Bibersteinia trehalosi is also considered as an emerging pathogen to cause BRD but not a primary pathogen to cause BRD [36]. Though, bacterial pathogenic diversity has yet to be further investigated; the current study emphasized on isolation and molecular characterization of P. multocida from BRD cases to show the prevalence and its contribution among all other pathogens in the study areas.…”

Section: Discussionmentioning

confidence: 99%

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Phenotypic and Molecular Characterization of the Capsular Serotypes of Pasteurella Multocida Isolates From Bovine Respiratory Disease Cases in Ethiopia

Yilma¹,

Vemulapati²,

Tefera³

et al. 2020

Preprint

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Background: Pasteurella multocida is a heterogeneous species and opportunistic pathogen that causes bovine respiratory disease. This disease is one of an economically important disease in Ethiopia. Losses due to mortality and associated expenses are estimated to be higher in the country. Studies revealed that limited information is available regarding the capsular types, genotypes, and antimicrobial sensitivity of P. multocida isolates circulating in the country. This suggests, further molecular advances to understand the etiological diversity of the pathogens representing severe threats to the cattle population. Results: Bacteriological analysis of nasopharyngeal swab and pneumonic lung tissue samples collected from a total of 400 samples revealed isolation of 61 (15.25%) P. multocida subspecies multocida. 35 (20.59%) were isolated from calves and 26 (11.30%) from adult cattle. Molecular analysis using PCR assay targeting KMT1 gene (~460 bp) amplification was shown in all presumptive isolates. Capsular typing also confirmed the presence of serogroup A (hyaD-hyaC) gene (~1044 bp) and serogroup D (dcbF) gene (~657 bp) from 56 (91.80%) and 5 (8.20%) isolates, respectively. The biovar typing identified 48 (78.69%) isolates of biovar 3. Phylogenetic analysis based on the hyaD-hyaC gene nucleotide sequences showed that P. multocida serogroup A are genetically closely related to the different P. multocida isolates retrieved from the GenBank. Antibiogram of isolates revealed high sensitivity towards chloramphenicol (100%), amoxicillin (95.08%), and amikacin (90.16%). Resistance was observed in cloxacillin (88.52%) and Penicillin-G (77.05%). Conclusions: In the present study, P. multocida capsular type A biovar 3 was predominantly isolated from pneumonic cases in cattle in the study areas. The finding provides useful information for further research and choice of antimicrobials for treatment. Hence, further comprehensive molecular epidemiological investigation is proposed covering wider areas of the country to identify pathogens associated with BRD for an effective control strategy.

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Section: Discussionsupporting

confidence: 91%

Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Phenotypic and Molecular Characterization of the Capsular Serotypes of Pasteurella Multocida Isolates From Bovine Respiratory Disease Cases in Ethiopia

Yilma¹,

Vemulapati²,

Tefera³

et al. 2020

Preprint

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“…Conventional imaging modalities, including ultrasonography, radiography, and endoscopy, are commonly used for diagnostic purposes in small and production animal medicine [ 1 , 4 , 13 , 16 , 17 ].…”

mentioning

confidence: 99%

Diagnosis of a sublaryngeal abscess in a Japanese Black calf using computed tomography

Sato

Mercier

Aihara

et al. 2020

The Journal of Veterinary Medical Science

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A 76-day-old Japanese Black calf presented with severe stridor, resenting palpation of the laryngeal region. Endoscopic examination revealed an expansile process restricting the esophageal and tracheal lumina caudal to the arytenoid cartilage, hyperemia and edema of the pharyngeal mucosa, right arytenoid cartilage swelling and displacement, and marked airway obstruction. The absence of an endotracheal wall abnormality impeded a definitive diagnosis. Computed tomography (CT) revealed a mass (CT value: 40–45 HU) caudal to the arytenoid cartilage, causing tracheal stenosis and esophageal displacement. The presence of gas in the mass suggested the presence of an abscess. Diagnosis of deep retropharyngeal lesions by conventional endoscopic and ultrasonographic examinations may be challenging; CT can then provide more comprehensive diagnostic information on a lesion.

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Outbreak of acute highly lethal phlegmon in the pharynx, associated with a new Pasteurella multocida MLST type ST63, in a limousine herd

González‐Martín

Pérez‐Villalobos

Patrón‐Collantes

et al. 2022

Vet Record Case Reports

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We report an outbreak of pharyngeal inflammation in an extensive limousine herd, in central Spain, associated with a novel genotype (ST63) of Pasteurella multocida capsular serogroup B (capB). The outbreak affected cattle of all ages, reaching a herd‐level death rate of 17.6% and case fatality rate of 93.3%. Affected animals showed throat inflammation, respiratory distress and finally death, without characteristics of depression or haemorrhagic septicaemia in an acute course. Postmortem examination only revealed inflammation, including oedema in the pharynx and surrounding tissues. None of the necropsied animals was septicaemic and none showed multisystem petechial haemorrhages, pneumonia or enteritis characteristics of haemorrhagic septicaemia. P. multocida was isolated, serotyped and characterised as capB and, with the multihost P. multocida multilocus sequence typing database, isolates were assigned to the new sequence type ST63. Results of this study suggest that capB P. multocida type ST63 should be considered in the differential diagnoses of acute throat inflammation in cattle.

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Respiratory Diseases

Cited by 24 publications

References 112 publications

Phenotypic and Molecular Characterization of the Capsular Serotypes of Pasteurella Multocida Isolates From Bovine Respiratory Disease Cases in Ethiopia

Phenotypic and Molecular Characterization of the Capsular Serotypes of Pasteurella Multocida Isolates From Bovine Respiratory Disease Cases in Ethiopia

Diagnosis of a sublaryngeal abscess in a Japanese Black calf using computed tomography

Outbreak of acute highly lethal phlegmon in the pharynx, associated with a new Pasteurella multocida MLST type ST63, in a limousine herd

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