Results 81 to 90 of about 12,680 (260)

Emergence of Livestock‐Associated Methicillin‐Resistant Staphylococcus aureus ST398 in Wild Birds, Brazil

open access: yesMicrobiologyOpen, Volume 14, Issue 6, December 2025.
In a protected forest fragment in southern Brazil, 197 wild birds were sampled, with 12.2% carrying Staphylococcus aureus. Two MRSA ST398 strains, the first reported in Brazilian wild birds, were identified. Genomic analysis revealed resistance and virulence genes, linking these strains to pigs and underscoring the critical need for resistance ...
Mateus Rocha Ribas   +19 more
wiley   +1 more source

The Host R‐M Systems Change the Host Range of Staphylococcus Phage EBHT

open access: yesMicrobiologyOpen, Volume 14, Issue 6, December 2025.
The study shows how Staphylococcal restriction–modification (R‐M) systems methylate the phage genomic DNA and change the phage host range. The host R‐M systems should be considered when selecting phage manufacturing hosts, as the manufacturing host with a higher yield can result in a narrower phage host range.
Henni Tuomala   +10 more
wiley   +1 more source

Antibiotic Resistance: A Genetic and Physiological Perspective

open access: yesMedComm, Volume 6, Issue 11, November 2025.
The development of resistance to antimicrobials and their historical progression are depicted in this graphic. It draws attention to important biochemical, physiological, and genetic factors that contribute to AMR, such as the transmission of genes, the development of biofilms, and the inactivation of antibiotics.
Rania G. Elbaiomy   +9 more
wiley   +1 more source

Quorum Sensing Inhibits Type III‐A CRISPR‐Cas System Activity Through Repressing Positive Regulators SarA and ArcR in Staphylococcus Aureus

open access: yesAdvanced Science, Volume 12, Issue 36, September 25, 2025.
This study proposes a novel model illustrating how quorum sensing (QS) regulates the type III‐A CRISPR‐Cas system in Staphylococcus aureus. The QS regulator AgrA suppresses CRISPR‐Cas activity by downregulating the transcriptional regulators SarA and ArcR.
Yang Li   +6 more
wiley   +1 more source

Tipo de cassette cromosómico estafilocócico en cepas clínicas de Staphylococcus aureus resistentes a meticilina

open access: yesKasmera, 2014
: Methicillin-resistant Staphylococcus aureus (MRSA) presents a protein that binds to penicillin, the PBP2a, encoded by the gene mecA, located in a mobile genetic element called the staphylococcal chromosomal cassette (SCCmec).
Castellano González Maribel J   +2 more
doaj  

Ontological representation of CDC Active Bacterial Core Surveillance Case Reports [PDF]

open access: yes, 2014
The Center for Disease Control and Prevention’s Active Bacterial Core Surveillance (CDC ABCs) Program is a collaborative effort betweeen the CDC, state health departments, laboratories, and universities to track invasive bacterial pathogens of particular
Cowell, Lindsay G.   +2 more
core  

Detection of novel chromosome-SCCmec variants in Methicillin Resistant Staphylococcus aureus and their inclusion in PCR based screening [PDF]

open access: yes, 2011
Findings. To facilitate automation, a novel DNA extraction method for MRSA was adopted. The MRSA specific chromosome-SCCmec PCR was adapted, additional primers were added, and the performance was validated. From various laboratories in The Netherlands we
Anneke van der Zee   +4 more
core   +1 more source

Staphylococcus aureus COL: An Atypical Model Strain of MRSA That Exhibits Slow Growth and Antibiotic Tolerance due to a Mutation in PRPP Synthetase

open access: yesMolecular Microbiology, Volume 124, Issue 3, Page 189-203, September 2025.
COL is an unusual “model” strain of Staphylococcus aureus that exhibits slow growth and multidrug antibiotic tolerance. This phenotype is primarily due to a mutation in Prs, which synthesizes the core metabolite phosphoribosyl pyrophosphate (PRPP). Introduction of the COL Prs allele into the antibiotic‐susceptible strain Newman confers tolerance, while
Claire E. Stevens   +5 more
wiley   +1 more source

Staphylococcal Cassette Chromosome mec (SCCmec) Classification and Typing Methods: an Overview

open access: yesPolish Journal of Microbiology, 2011
Meticillin-resistant Staphylococcus aureus (MRSA) is one of the main causes of hospital-acquired infections, but since late 1990s also the community-acquired. For better understanding of the S.aureus epidemiology there is an urgent need for creation of new typing method for SCCmec element.
Turlej, Agata   +2 more
openaire   +2 more sources

Changing epidemiology of methicillin-resistant Staphylococcus aureus colonization in paediatric intensive-care units [PDF]

open access: yes, 2012
Community-associated methicillin-resistant S. aureus (CA-MRSA) accounts for a growing proportion of hospital-onset infections, and colonization is a risk factor.
Hermos, C. R   +4 more
core   +2 more sources

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