Mastitis in sheep – The last 10 years and the future of research

Gelasakis, Athanasios Ι.; Mavrogianni, V.S.; Petridis, Ioannis; Vasileiou, N.G.C.; Fthenakis, George C.

doi:10.1016/j.vetmic.2015.07.009

Cited by 152 publications

(144 citation statements)

References 127 publications

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“…S. uberis and E. coli are also common mastitis pathogens in cattle but relatively rare in sheep (Gelasakis et al., ; Zadoks et al., ). Conversely, Mannheimia haemolytica mastitis is common in sheep but not in cattle, whereas S. aureus is common in both host species (Gelasakis et al., ; Zadoks et al., ) and also in people (Price et al., ; Zadoks et al., ). The mechanisms underpinning observed differences in host preference are poorly studied and may provide insights into host‐adaptation or virulence factors.…”

Section: Epidemiologymentioning

confidence: 99%

An update on environmental mastitis: Challenging perceptions

Klaas

Zadoks

2017

Transbound Emerg Dis

197

144

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Section: Epidemiologymentioning

confidence: 99%

An update on environmental mastitis: Challenging perceptions

Klaas

Zadoks

2017

Transbound Emerg Dis

197

144

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“…Escherichia coli , streptococci etc.) account for a smaller proportion of cases of the disease (Bergonier & Berthelot, ; Bergonier, Cremoux, Rupp, Lagriffoul, & Berthelot, ; Gelasakis, Mavrogianni, Petridis, Vasileiou, & Fthenakis, ; Queiroga, ).…”

Section: Introductionmentioning

confidence: 99%

Predisposing factors for bacterial mastitis in ewes

Vasileiou

Mavrogianni

Petinaki

et al. 2019

Reprod Domestic Animals

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Objective of this review paper is the appraisal of predisposing factors for bacterial mastitis in ewes. Factors that predispose ewes to mastitis can be classified into non‐animal‐related factors (environmental and climatological factors, housing, nutrition, milking practices) and animal‐related factors (anatomic, genetic, litter size—ethological factors, number and stage of lactation period, health problems). There are clear management—environment—animal interactions in mastitis development in ewes, which underline its multifactorial nature. Research and studies regarding risk factors are important, in order to develop strategies for their elimination, control or correction. Control measures for bacterial mastitis, which attempt to eliminate predisposing factors for infection, can thus be developed and implemented.

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“…Of pvl positive strains, three, three, one, and one were S. aureus, S. xylosus, S. simulans and S. hyicus, respectively ( Figure 2). The distribution of mecA and pvl genes was shown in Table 3 Staphylococci are the most common etiologic agents isolated from subclinical mastitis cases in sheep (Ozenc et al 2011, Gelasakis et al 2015, Queiroga 2017. In recent years, methicillin resistance mediated by the mecA gene has been increasingly reported in Coagulase Negative Staphylococci (CNS) as well as in S. aureus isolated from bovine mastitic milk samples (Vyletělová et al 2011, Ünal and Çinar 2012, Gelasakis et al 2015.…”

Section: All Of 47mentioning

confidence: 99%

“…The distribution of mecA and pvl genes was shown in Table 3 Staphylococci are the most common etiologic agents isolated from subclinical mastitis cases in sheep (Ozenc et al 2011, Gelasakis et al 2015, Queiroga 2017. In recent years, methicillin resistance mediated by the mecA gene has been increasingly reported in Coagulase Negative Staphylococci (CNS) as well as in S. aureus isolated from bovine mastitic milk samples (Vyletělová et al 2011, Ünal and Çinar 2012, Gelasakis et al 2015. However, the reports and data related to the prevalence of this gene in Staphylococci isolated from sheep with subclinical mastitis are limited (Vyletělová et al 2011, França et al 2012, Martins et al 2015.…”

Section: All Of 47mentioning

confidence: 99%

Prevalence of Methicillin Resistance and Panton-Valentine Leukocidin Genes in Staphylococci Isolated from Pirlak Sheep with Subclinical Mastitis in Turkey

Şeker

Özenç

Acar

et al. 2019

Kocatepe Veterinary Journal

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This study aimed to investigate the presence of mecA and pvl genes in 47 Staphylococci previously isolated from 464 half-udder milk samples belong to 235 Pirlak sheep screening for subclinical mastitis. The species from Pirlak sheep used in the present study included: 13 S. aureus, 13 S. epidermidis, six S. xylosus, five S. chromogenes, three S. simulans, three S. hyicus, two S. warneri, one S. lentus and one S. saprophyticus. A total of 10 strains (21.3%) were determined to harbour mecA gene, of these, two (4.2%) also contained pvl gene. The strains carrying mecA gene were found to be S. aureus (3/13), S. xylosus (3/6), S. epidermidis (2/13), S. lentus (1/1) and S. hyicus (1/3). The presence of pvl gene was determined in a total of eight strains (17.0%), six (12.8%) of these were alone. Of pvl positive strains, three, three, one, and one were S. aureus, S. xylosus, S. simulans and S. hyicus, respectively. To our knowledge, this is the first study showing the presence of mecA and pvl genes in the Staphylococci isolated from Pirlak sheep with subclinical mastitis in Turkey.

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Mastitis in sheep – The last 10 years and the future of research

Cited by 152 publications

References 127 publications

An update on environmental mastitis: Challenging perceptions

An update on environmental mastitis: Challenging perceptions

Predisposing factors for bacterial mastitis in ewes

Prevalence of Methicillin Resistance and Panton-Valentine Leukocidin Genes in Staphylococci Isolated from Pirlak Sheep with Subclinical Mastitis in Turkey

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