Recurrent mastitis–persistent or new infections?
| Autor: | J.-H. Paduch, A.S. Grieger, E. M. Mansion-de Vries, Stefanie Leimbach, Doris Klocke, M. tho Seeth, Yanchao Zhang, Nicole Wente, Volker Krömker, Elmar Mohr |
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| Rok vydání: | 2020 |
| Předmět: |
medicine.medical_specialty
Future studies Dairy industry Culling Biology Microbiology Milk yield Recurrence Germany Internal medicine medicine Animals Mastitis Bovine Pathogen Bacteria General Veterinary Streptococcus Bacterial Infections General Medicine Bacteriological Cure medicine.disease Mastitis Molecular Typing Dairying Milk Increased risk Cattle Female |
| Zdroj: | Veterinary Microbiology. 244:108682 |
| ISSN: | 0378-1135 |
| DOI: | 10.1016/j.vetmic.2020.108682 |
| Popis: | Recurrent clinical mastitis contributes to around half of all infections having an economic impact in the dairy industry. It leads to milk yield reduction, increased risk of mortality, and culling, and may be caused by new infections or a persistent infection after previous treatment. Disease management is dependent on the infecting species, necessitating accurate identification of the pathogen in the range of persistent and reinfection cases among recurrent infections using culture and molecular biological analysis. Milk samples from diagnosed clinical mastitis cases were collected from three Northern German dairy farms between 2011 and 2015. Totally, 2043 diagnosed mastitis cases were examined at quarter level (1598 (78.2 %) first and 445 (21.8 %) recurrent mastitis cases in lactation). Among the recurrent cases, 145 (32.6 %) cases were confirmed to harbor the same pathogenic species as previous infections. RAPD PCR confirmed the same species strain in 49 (11 %) of the recurrent infections. The contribution of new infections as compared to persistent infections in cases of clinical mastitis is clear from the data. Future studies in recurrent clinical mastitis control should be focused on influencing factors to prevent new infections in addition to therapeutic intervention and bacteriological cure. |
| Databáze: | OpenAIRE |
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