BackgroundCarriage of multidrug-resistant organisms (MDROs) in humans constitutes an important public health concern. Cross-transmission of bacteria between animals and humans has been demonstrated before. AimOur aim was to quantify the risk factor ‘pet ownership’ for MDRO colonisation in hospital patients. MethodsWe performed a matched case–control study from 2019 to 2022 in Berlin, Germany and compared MDRO-positive and MDRO-negative patients in terms of contact with pets and other risk factors for MDRO acquisition. Patients completed a questionnaire-based interview and provided nasal and rectal swabs. Pet owners provided swab samples from the throat and stool of their pets (dogs and cats). Phenotypically matching samples of owners and pets were analysed via whole genome sequencing. ResultsThe analyses included 2,891 patients. Reported pet ownership was 17.7% in MDRO-positives (154/871) and 23.4% in MDRO-negatives (472/2,020). Among 397 owner–pet pairs, we identified one pair sharing genotypically indistinguishable pathogens (0.3%). A risk factor analysis of pet ownership was performed for carriers of meticillin-resistant Staphylococcus aureus (MRSA) (OR = 0.662; 95% CI: 0.343–1.277), vancomycin-resistant enterococci (VRE) (OR = 0.764; 95% CI: 0.522–1.118) and multidrug-resistant Gram-negative bacteria (MDR-GNB) (OR = 0.819; 95% CI: 0.620–1.082). Colonisation with MDRO was rare in pets, and dogs were more often colonised than cats (MRSA: 0% vs 0%, VRE: 1.5% vs 1.0%, MDR-GNB: 17.2% vs 3.6%). ConclusionTransmission of MDROs between humans and pets is possible though rare. In an urban living space, neither cat nor dog ownership appears as a relevant risk factor for MDRO carriage in hospital patients. …

Researchers who uncovered a fresh class of antibiotics used a new process — explainable AI — that could propel drug discovery. Medscape Medical News…

BackgroundAntimicrobial resistance (AMR) is of public health concern worldwide. AimWe aimed to summarise the German AMR situation for clinicians and microbiologists. MethodsWe conducted a systematic review and meta-analysis of 60 published studies and data from the German Antibiotic-Resistance-Surveillance (ARS). Primary outcomes were AMR proportions in bacterial isolates from infected patients in Germany (2016–2021) and the case fatality rates (2010–2021). Random and fixed (common) effect models were used to calculate pooled proportions and pooled case fatality odds ratios, respectively. ResultsThe pooled proportion of meticillin resistance in Staphylococcus aureus infections (MRSA) was 7.9% with a declining trend between 2014 and 2020 (odds ratio (OR) = 0.89; 95% CI: 0.886–0.891; p 

Referencelaboratoriet for Antibiotikaresistens på Statens Serum Institut opgør hvert kvartal antallet af blodforgiftninger forårsaget af MRSA samt dødsfald som følge af disse.

Referencelaboratoriet for Antibiotikaresistens på Statens Serum Institut opgør hvert kvartal antallet af blodforgiftninger forårsaget af MRSA samt dødsfald som følge af disse.

Der var i 2013 en stor stigning i antallet af patienter, der fik infektioner med multiresistente bakterier som VRE og CPE på de danske hospitaler. Derimod fastholdtes antallet af hospitals MRSA infektioner på samme lave niveau som året før. Det viser årets DANMAP rapport fra Statens Serum Institut og DTU Fødevareinstituttet.

I 4. kvartal 2022 blev der registreret 12 nye tilfælde af blodforgiftning med MRSA. Tre af patienterne døde. Det viser den seneste opgørelse fra Statens Serum Institut.

BackgroundSince the beginning of the war in Ukraine in February 2022, Ukrainians have been seeking shelter in other European countries.AimWe aimed to investigate the prevalence and the molecular epidemiology of multidrug-resistant Gram-negative (MDRGN) bacteria and meticillin-resistant Staphylococcus aureus (MRSA) in Ukrainian patients at admittance to the University Hospital Frankfurt, Germany.MethodsWe performed screening and observational analysis of all patients from March until June 2022. Genomes of MDRGN isolates were analysed for antimicrobial resistance, virulence genes and phylogenetic relatedness.ResultsWe included 103 patients (median age: 39 ± 23.7 years), 57 of whom were female (55.3%; 95% confidence interval (CI): 45.2–5.1). Patients were most frequently admitted to the Department of Paediatrics (29/103; 28.2%; 95% CI: 19.7–37.9). We found 34 MDRGN isolates in 17 of 103 patients (16.5%; 95% CI: 9.9–25.1). Ten patients carried 21 carbapenem-resistant (CR) bacteria, five of them more than one CR isolate. Four of six patients with war-related injuries carried eight CR isolates. In six of 10 patients, CR isolates caused infections. Genomic characterisation revealed that the CR isolates harboured at least one carbapenemase gene, blaNDM-1 being the most frequent (n = 10). Core genome and plasmid analysis revealed no epidemiological connection between most of these isolates. Hypervirulence marker genes were found in five of six Klebsiella pneumoniae CR isolates. No MRSA was found.ConclusionHospitals should consider infection control strategies to cover the elevated prevalence of MDRGN bacteria in Ukrainian patients with war-related injuries and/or hospital pre-treatment and to prevent the spread of hypervirulent CR isolates.…

I 3. kvartal 2022 blev der registreret 18 nye tilfælde af blodforgiftning med MRSA. Tre af patienterne døde. Det viser den seneste opgørelse fra Statens Serum Institut.

In this retrospective observational study, we analysed a community outbreak of impetigo with meticillin-resistant Staphylococcus aureus (MRSA), with additional resistance to fusidic acid (first-line treatment). The outbreak occurred between June 2018 and January 2020 in the eastern part of the Netherlands with an epidemiological link to three cases from the north-western part. Forty nine impetigo cases and eight carrier cases were identified, including 47 children. All but one impetigo case had community-onset of symptoms. Pharmacy prescription data for topical mupirocin and fusidic acid and GP questionnaires suggested an underestimated outbreak size. The 57 outbreak isolates were identified by the Dutch MRSA surveillance as MLVA-type MT4627 and sequence type 121, previously reported only once in 2014. Next-generation sequencing revealed they contained a fusidic acid resistance gene, exfoliative toxin genes and an epidermal cell differentiation inhibitor gene. Whole-genome multilocus sequence typing revealed genetic clustering of all 19 sequenced isolates from the outbreak region and isolates from the three north-western cases. The allelic distances between these Dutch isolates and international isolates were high. This outbreak shows the appearance of community-onset MRSA strains with additional drug resistance and virulence factors in a country with a low prevalence of antimicrobial resistance.…

I 2. kvartal 2022 blev der registreret ni nye tilfælde af blodforgiftning med MRSA. Der var ingen af patienterne, der døde. Det viser den seneste opgørelse fra Statens Serum Institut.

I 1. kvartal 2022 blev der registreret 11 nye tilfælde af blodforgiftning med MRSA. Heraf døde tre patienter. Det viser den seneste opgørelse fra Statens Serum Institut.

Luigi Ciesco came from a small village in southern Italy, growing up in real poverty, before meeting his wife-to-be Vincenza, and emigrating to the United Kingdom in the 1960s. A husband for 57 years, a father of 4 and a grandfather of 8, Luigi worked for the National Health Service in England. Twenty years ago he contracted methicillin-resistant Staphylococcus aureus (MRSA), a type of bacterial infection which is resistant to many widely used antibiotics, which seriously compromised his health and led to multiple illnesses over the following years.

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Prosthetic joint surgery infections following emergency femur fracture surgery can be avoided by screening and decolonization. …

Background

Increasing resistance to antibiotics poses medical challenges worldwide. Prospective data on carriage prevalence of multidrug resistant organisms (MDRO) in children at hospital admission are limited and associated risk factors are poorly defined.

Aim

To determine prevalence of MDRO carriage in children at admission to our paediatric hospital in Hamburg and to identify MDRO carriage risk factors.

Methods

We prospectively obtained and cultured nasal/throat and inguinal/anal swabs from children (≤ 18 years) at admission between September 2018 and May 2019 to determine prevalence of meticillin-resistant Staphylococcus aureus (MRSA), multidrug-resistant Gram-negative bacteria (MRGN) and vancomycin-resistant enterococcus (VRE) and associated species. We collected medical histories using a questionnaire and evaluated 31 risk factors using logistic regression models.

Results

MDRO carriage prevalence of 3,964 children was 4.31% (95% confidence interval (CI): 3.69–5.00). MRSA carriage prevalence was 0.68% (95% CI: 0.44–0.99), MRGN prevalence was 3.64% (95% CI: 3.07–4.28) and VRE prevalence 0.08% (95% CI: 0.02–0.22). MDRO carriage was associated with MRGN history (odds ratio (OR): 6.53; 95% CI: 2.58–16.13), chronic condition requiring permanent care (OR: 2.67; 95% CI: 1.07–6.13), antibiotic therapy (OR: 1.92, 95% CI: 1.24–2.94), living in a care facility (OR: 3.34; 95% CI: 0.72–12.44) and refugee status in previous 12 months (OR: 1.91; 95% CI: 0.27–8.02). Compared to established practice, screening using risk-factors had better diagnostic sensitivity (86.13%; 95% CI: 80.89–91.40) and specificity (73.54%; 95% CI: 72.12–74.97).

Conclusion

MRGN carriage was higher than MRSA and VRE. Extended risk-factor-based admission screening system seems warranted.…

I 4. kvartal 2021 blev der registreret 11 nye tilfælde af blodforgiftning (bakteriæmi) med MRSA (methicillin-resistente Staphylococcus aureus), hvoraf 5 patienter døde.