8 research outputs found
Diversity of Staphylococcus aureus Isolates in European Wildlife
Staphylococcus aureus is a well-known colonizer and cause of infection among
animals and it has been described from numerous domestic and wild animal
species. The aim of the present study was to investigate the molecular
epidemiology of S. aureus in a convenience sample of European wildlife and to
review what previously has been observed in the subject field. 124 S. aureus
isolates were collected from wildlife in Germany, Austria and Sweden; they
were characterized by DNA microarray hybridization and, for isolates with
novel hybridization patterns, by multilocus sequence typing (MLST). The
isolates were assigned to 29 clonal complexes and singleton sequence types
(CC1, CC5, CC6, CC7, CC8, CC9, CC12, CC15, CC22, CC25, CC30, CC49, CC59, CC88,
CC97, CC130, CC133, CC398, ST425, CC599, CC692, CC707, ST890, CC1956, ST2425,
CC2671, ST2691, CC2767 and ST2963), some of which (ST2425, ST2691, ST2963)
were not described previously. Resistance rates in wildlife strains were
rather low and mecA-MRSA isolates were rare (n = 6). mecC-MRSA (n = 8) were
identified from a fox, a fallow deer, hares and hedgehogs. The common cattle-
associated lineages CC479 and CC705 were not detected in wildlife in the
present study while, in contrast, a third common cattle lineage, CC97, was
found to be common among cervids. No Staphylococcus argenteus or
Staphylococcus schweitzeri-like isolates were found. Systematic studies are
required to monitor the possible transmission of human- and livestock-
associated S. aureus/MRSA to wildlife and vice versa as well as the possible
transmission, by unprotected contact to animals. The prevalence of S.
aureus/MRSA in wildlife as well as its population structures in different
wildlife host species warrants further investigation
Assessment Of Hygienic Quality Of Camel (Camelus dromedarius) Milk In Khartoum State, Sudan
A total of 112 individual camel milk samples were collected during the period from
December 2004 to June 2005 to evaluate the hygienic quality of raw camel milk in two
locations of Khartoum State, Sudan. To achieve this the following microbiological counts
were done: total bacterial counts, mesophilic counts, psychrotrophic count, coliform
counts, E. coli counts, total Staphylococcus spp. counts and yeast- mold counts. Nonsignificant differences were reported when comparing the two locations in total bacterial
counts, mesophilic counts and yeast- mold counts. Eastern Nile scored significantly (P=
0.05) high coliform counts, E. coli counts and Staphylococcus spp. counts. Of the 112
camel milk samples E. coli, Staphylococcus spp. and yeast- mold were reported in 33
(29.5%), 46 (41%) and 32 (28.6%) camel milk samples, respectively. Moreover,
psychrotrophic bacteria were not reported during this study, which can be explained by
the lack of cooling facilities among the nomadic communities. Despite of it is been the
major stable food for the pastoralists, the overall result obtained from the current study
suggested that raw camel milk is of poor quality with presence of great variability among
the milk samples regarding the hygienic quality. However, no outbreak causes reported
by the consumption of raw camel milk among the pastoralist in Sudan.Au total, 112 échantillons de lait de dromadaire ont été collectés entre décembre 2004 et
juin 2005, afin d\'évaluer la qualité hygiénique du lait cru de dromadaire dans deux
localités de l\'Etat de Khartoum au Soudan. Pour ce faire, on a effectué les comptages
des flores microbiologiques ci-après : le dénombrement total de bactéries, d\'organismes
mésophiliques, de bactéries psychrotrophiques et coliformes, les nombres d\'E. coli, de
Staphylococcus spp. et de champignons. Aucune différence significative n\'a été
constatée en comparant les deux localités en ce qui concerne le dénombrement de
bactéries, d\'organismes mésophiliques et de champignons. Le Nil oriental avait enregistré
un nombre élevé (P=0,05) de bactéries coliformes, d\'E. coli et de Staphylococcus spp.
Parmi les 112 échantillons de lait de dromadaire collectés, E. coli, Staphylococcus spp.
et le champignon ont été signalés dans 33 (29,5%), 46 (41%) et 32 (28,6%) des
échantillons respectivement. En outre, les bactéries psychrotrophiques n\'ont pas été
aperçues au cours de l\'étude, ce qui est peut-être dû au manque de matériel de
refroidissement chez les communautés nomades. Même si le lait cru de dromadaire
constitue l\'aliment de base des pasteurs, les résultats de la présente étude ont montré
que dans l\'ensemble le lait cru de dromadaire est de qualité médiocre et qu\'il y a une
variabilité des échantillons quant à la qualité hygiénique. Toutefois, aucun cas de maladie
n\'a été signalé chez les pasteurs au Soudan suite à la consommation de lait cru de
dromadaire.Bulletin of Animal Health and Production in Africa Vol. 55 (2) 2007: pp. 112-11