Staphylococci from the feces of different animal species: biotypes of Staphylococcus aureus strains of sheep and goat origin

Dimitracopoulos, G.; Sakellariou, Christian; Papavassiliou, J.

doi:10.1128/aem.32.1.53-55.1976

Cited by 8 publications

(5 citation statements)

References 6 publications

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“…The isolation of human biotype A strains and intermediate-type strains from the rectal swabs of pigs and cows correlates well with our findings among the isolates of S. aureus from sheep and goats (5). This might be explained by the transfer of staphylococci from human to animals through food contaminated by human hands.…”

Section: Discussionsupporting

confidence: 89%

“…Most of the results appearing on the separation of S. aureus into biotypes are based on the characteristics of strains obtained from the upper respiratory tract of the animals. We have extended our investigations to also include strains from the feces of animals that live in close contact with humans and contribute to the distribution of S. aureus in the environment (5).…”

mentioning

confidence: 99%

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Animal fecal carriership and biotypes of Staphylococcus aureus

Dimitracopoulos¹,

Kalkani-Boussiakou²,

Papavassiliou³

1977

Appl Environ Microbiol

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Staphylococcus aureus was found in 44% of the rectal swabs from 377 pigs and in 12% of the swabs from 147 cows. Seventy-one percent of the isolates from pigs showed fibrinolytic activity and grew in colonies of the negative violet type on crystal violet agar. In this group, 47% of the isolates coagulated both human and bovine plasmas and were characterized as intermediate type, whereas 24% coagulated human plasna and were classified as human biotype A. Among the fibrinolysin-negative isolates, 15, 12, and 2% were identifiable as animal biotypes B, C, and E, respectively. The cow isolates were classified as intermediate type (51%), human biotype A (40%o), and animal biotype C (9%).

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Section: Discussionsupporting

confidence: 89%

mentioning

confidence: 99%

Animal fecal carriership and biotypes of Staphylococcus aureus

Dimitracopoulos¹,

Kalkani-Boussiakou²,

Papavassiliou³

1977

Appl Environ Microbiol

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“…[24]. About 30% of our strains possessed the characters of the B biotype, a fact easily explained by the interchange of staphylococci among different animals due to their frequent contact [25]. Identification of A biotype strains in the other group of isolates suggests contamination of the products with staphylococci of human origin during manufacture or distribution.…”

Section: Discussionmentioning

confidence: 84%

Characterization of Staphylococcus species isolated from raw milk and milk products (lben and jben) in North Morocco

Bendahou

Lebbadi

En-nanei³

et al. 2008

J Infect Dev Ctries

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Introduction: Staphylococcus aureus is a major foodborne pathogen that poses a serious threat to public health. Indiscriminate use of antibiotics increases evolution of antibiotic resistant strains. This study aimed to determine the presence of Staphylococcus aureus in milk and milk products and their antimicrobial susceptibility patterns. Methods: A total of 334 samples were collected for analysis in the laboratories. To determine antimicrobial susceptibility patterns, selected antibiotics from different classes were used: Penicillin G, Erythromycin, Vancomycin, Chloramphenicol, Tetracycline, Gentamycin, Methicillin, and Cipro oxacin. Results: The presence of S. aureus in milk and milk products was found occurring in 21.56% of all the samples. In raw milk analyzed, 64.81% of samples were contaminated by Staphylococcus aureus, 20.54% in pasteurized milk, 10.71% in yogurt, and 3.57% in ice cream. All isolates were found to be 100 % sensitive to Tetracycline, Cipro oxacin, Erythromycin, and Methicillin. Infrequent sensitivity was found in Gentamicin and Vancomycin. Resistance to Penicillin G was occasionally observed across the different sources of milk and milk products. Resistance to Gentamicin (42 %) and Vancomycin (11 %) was seldom observed in isolates, hence occurring in yogurt samples only. Conclusion and Recommendation: The research hypothesis was rejected based on the presence of pathogenic Staphylococcus aureus across the different samples analyzed. It is recommended that Tetracycline, Cipro oxacin, Methicillin, and Erythromycin antibiotics should be used for the treatment of Staphylococcus aureus infections based on the susceptibility test outcome.

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“…9 There are numerous reports of the isolation of Staphylococcus aureus from pigs, and it is generally assumed that, as in human beings, S. aureus is part of the “normal” bacterial flora of swine. 9 Anatomical sites from which S. aureus has been isolated from pigs include skin, 23 tonsils, 28,34 feces, 5,11 nose, 10 internal organs, 28,31 and arthritic joints. 30 Although commonly detected in a range of lesions in pigs, S. aureus is viewed as an opportunistic pathogen, as cases tend to be sporadic and outbreaks of disease are rare.…”

Section: Introductionmentioning

confidence: 99%

The effect of anatomic site and age on detection of Staphylococcus aureus in pigs

et al. 2014

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Abstract. Despite active research into methicillin-resistant Staphylococcus aureus (MRSA) in pigs since 2004, the ecology of the susceptible ancestral organism has been neglected. A longitudinal study of pigs in 2 intensive production systems was conducted to investigate the effects of age and anatomical site on detection of S. aureus. Sampling was replicated in 2 cohorts per farm, with swabs collected from the nares, tonsils, skin (axilla), and rectum in lactating sows, suckling, weaned, and market-age pigs, plus the vagina of sows. No MRSA were isolated, but S. aureus was detected in a least 1 site in 175 (91.1%) out of 192 pigs. Pig-level prevalence did not differ among the age groups, but the proportion of positive samples (all sites) was higher in market-age pigs (75.2%) and nursery-age pigs (63.2%) than in sows (40.7%) and suckling piglets (38%). Prevalence did not differ among nasal (67.9%), skin (62.3%), and tonsil (61.7%) swabs, but was lower in rectal (42%) and vaginal swabs (39.6%). Multiple multilocus sequence typing (MLST) and spa types were found in both production systems, but all isolates were of ST398, ST9, or ST5. These MLST lineages have been variably predominant among reports of MRSA in pigs on 3 continents, and the presence of methicillin-sensitive variants in several countries raises the likelihood that MRSA in pigs has likely resulted from independent acquisition of the mecA gene by multiple S. aureus lineages that have been adapted to swine over the long term, rather than recent introduction of novel clones into swine populations.

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Staphylococci from the feces of different animal species: biotypes of Staphylococcus aureus strains of sheep and goat origin

Cited by 8 publications

References 6 publications

Animal fecal carriership and biotypes of Staphylococcus aureus

Animal fecal carriership and biotypes of Staphylococcus aureus

Characterization of Staphylococcus species isolated from raw milk and milk products (lben and jben) in North Morocco

The effect of anatomic site and age on detection of Staphylococcus aureus in pigs

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