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Background:Staphylococcus haemolyticusis an emerging threat in the nosocomial environment but only some virulence factors are known. Materials & methods:The frequency of the sasXgene (or orthologues sesI/shsA), encoding an invasiveness-related surface-associated protein, in S. haemolyticuswas detected in different hospitals in Rio de Janeiro. Results:9.4% of strains were sasX/sesI/shsA-positive, some were in the context of the ΦSPβ-like prophage and devoid of CRISPR systems, indicating potential transferability of their virulence genes. Gene sequencing evidenced that Brazilian S. haemolyticusharbored sesI, instead of the usual sasX, while S. epidermidishad sasXinstead of sesI, suggesting horizontal acquisition. Conclusion:The contexts of Brazilian sasX/sesI/shsAfavor transfer, which is alarming given the difficulty in treating infections caused by S. haemolyticus.

We present a study in the southern Puna (26°30′–27°30′S), aiming to explore the late Cenozoic evolution of the deformation and the stress field during its uplift. Through U‐Pb geochronology, structural observations, paleostress analysis, and balanced cross‐sections, we propose an structural evolutionary model over the past 24 million years, separated in four stages: Stage 1, in the late Oligocene to middle Miocene, the region experienced E‐W compression. Stage 2, from middle to late Miocene, a transition from predominant compression to an incipient strike‐slip regime is observed. Stage 3, from late Miocene to early Pliocene, showed a further shift in the stress field, resulting in a combination of a predominant strike‐slip regime, and less predominant compressional regime. Finally, Stage 4, from late Pliocene to Quaternary, featured a dominance of strike‐slip regimes. Our results show that the stress field in each stage is associated with the orogen's internal architecture and its evolution. Vertical stress variations are linked to plateau uplift, creating topographic gradients across the orogen. Horizontal rotations of the principal stress axes are caused mainly by an edge effect resulting from the growth of the plateau while it reaches a critical crustal thickness and elevation. This leads to a transfer of compression from high‐lying areas to lower regions. The southernmost Puna region shows no significant evidence of normal faulting, suggesting it is not undergoing orogenic collapse associated with a regional tensional stress regime. We present a structural study in the southern Puna region focused on the late Cenozoic evolution of the tectonic stress fieldThe study emphasizes the link between internal architecture of an orogen, plateau uplift and the stress field during Miocene‐PleistoceneThe southernmost Puna is not undergoing extensional orogenic collapse We present a structural study in the southern Puna region focused on the late Cenozoic evolution of the tectonic stress field The study emphasizes the link between internal architecture of an orogen, plateau uplift and the stress field during Miocene‐Pleistocene The southernmost Puna is not undergoing extensional orogenic collapse

Compared to the thin‐skinned Subandean foreland fold‐and‐thrust belt of northern Argentina and Bolivia, the tectonically active morphotectonic province of the Santa Bárbara System in the Andean broken foreland of northwestern Argentina is characterized by a temporally and spatially disparate deformation style. Although there is no well‐defined orogenic deformation front associated with the uplift of these basement‐cored, reverse‐fault bounded mountain ranges, there has been an overall eastward trend in Andean compressional deformation since the Miocene. While reactivation of basement anisotropies, such as early Paleozoic metamorphic fabrics and Cretaceous normal faults, has been proposed to have profoundly affected deformation processes in the Santa Bárbara System, other mechanisms involving Mesozoic and Cenozoic cover rocks may also have played an important role in orogenic deformation in this sector of the Andean foreland. We present structural field observations, interpretations of seismic reflection profiles, and kinematic modeling from the basins bordering the Candelaria Range in the southern sector of the Santa Bárbara System at 26°S. Our analysis features a 110‐km‐long structural cross section that images and links deep‐seated structures with shallow neotectonic faults. We find that regional shortening has been facilitated by several faults associated with a regional detachment at a depth of 23 km, resulting in total horizontal shortening of about 17% (18.4 km). While the deep‐seated first‐order structures seem closely linked to seismogenic processes in the Andean foreland, shallow second‐order structures within the sedimentary cover modify the intermontane landscapes and appear to be associated with aseismic creep. Kinematic model for the Santa Bárbara System shows a 1st‐order detachment at 23 km depth, contributing to 18.4 km of Cenozoic shorteningDeformation shows spatiotemporal variations, linked to reactivation of Cretaceous extensional faults and/or basement heterogeneitiesSeismicity is closely associated with deep faults rather than shallow structures affecting the sedimentary cover Kinematic model for the Santa Bárbara System shows a 1st‐order detachment at 23 km depth, contributing to 18.4 km of Cenozoic shortening Deformation shows spatiotemporal variations, linked to reactivation of Cretaceous extensional faults and/or basement heterogeneities Seismicity is closely associated with deep faults rather than shallow structures affecting the sedimentary cover