Stability of immunohaematological reagents used for blood typing of recipients in the tube technique.

BACKGROUND AND OBJECTIVES: The storage temperature of immunohaematological reagents generally ranges from 2 to 8°C, and they should be utilised at room temperature. This study aimed to analyse the stability of immunohaematological reagents used in ABO and RhD typing. METHODS: The evaluation encompassed the potency, specificity, and integrity of anti-A, anti-B, anti-D, RhD control sera, and A1 and B red blood cells (RBC) reagents after long (8 h) and short (4 h) daily periods of exposure to room temperature (20-24°C), 5 days a week for 4 weeks. Additionally, the A1 and B RBC reagents were exposed daily for 11 h and 30 min at room temperature, including 30 more minutes at room temperature with simultaneous homogenisation through equipment. For the control, an aliquot of each reagent was constantly stored at refrigeration temperature, while another was exposed to room temperature for 12 h daily. Tests conducted included reaction intensity, titration, and avidity for antisera, reaction intensity, free haemoglobin determination, and electrical conductivity for the RBC reagents. RESULTS: The antisera maintained the reaction intensity. The titre and avidity of the antisera satisfied the minimum Brazilian requirements after different exposure periods. A higher free haemoglobin concentration was noted in the RBC reagents subjected to room temperature and simultaneous homogenisation, although this did not affect the potency and specificity. The electrical conductivity average of the RBC reagent remained consistent. CONCLUSION: The findings indicate that the immunohaematological reagents from a specific manufacturer are stable under the tested temperature, ensuring the quality of the results under these conditions.

Follow-up SARS-CoV-2 serological study of a health care worker cohort following COVID-19 booster vaccination.

BACKGROUND: Studies have shown that Omicron breakthrough infections can occur at higher SARS-CoV-2 antibody levels compared to previous variants. Estimating the magnitude of immunological protection induced from COVID-19 vaccination and previous infection remains important due to varying local pandemic dynamics and types of vaccination programmes, particularly among at-risk populations such as health care workers (HCWs). We analysed a follow-up SARS-CoV-2 serological survey of HCWs at a tertiary COVID-19 referral hospital in Germany following the onset of the Omicron variant. METHODS: The serological survey was conducted in January 2022, one year after previous surveys in 2020 and the availability of COVID-19 boosters including BNT162b2, ChAdOx1-S, and mRNA-1273. HCWs voluntarily provided blood for serology and completed a comprehensive questionnaire. SARS-CoV-2 serological analyses were performed using an Immunoglobulin G (IgG) enzyme-linked immunosorbent assay (ELISA). Antibody levels were reported according to HCW demographic and occupational characteristics, COVID-19 vaccination and SARS-CoV-2 infection history, and multivariate linear regression was used to evaluate these associations. RESULTS: In January 2022 (following the fourth COVID-19 wave in Germany including the onset of the Omicron variant), 1482/1517 (97.7%) HCWs tested SARS-CoV-2 seropositive, compared to 4.6% in December 2020 (second COVID-19 wave). Approximately 80% had received three COVID-19 vaccine doses and 15% reported a previous laboratory-confirmed SARS-CoV-2 infection. SARS-CoV-2 IgG geometric mean titres ranged from 335 (95% Confidence Intervals [CI]: 258-434) among those vaccinated twice and without previous infection to 2204 (95% CI: 1919-2531) among those vaccinated three times and with previous infection. Heterologous COVID-19 vaccination combinations including a mRNA-1273 booster were significantly associated with the highest IgG antibody levels compared to other schemes. There was an 8-to 10-fold increase in IgG antibody levels among 31 HCWs who reported a SARS-CoV-2 infection in May 2020 to January 2022 after COVID-19 booster vaccination. CONCLUSIONS: Our findings demonstrate the importance of ongoing COVID-19 booster vaccination strategies in the context of variants such as Omicron and despite hybrid immunity from previous SARS-CoV-2 infections, particularly for at-risk populations such as HCWs. Where feasible, effective types of booster vaccination, such as mRNA vaccines, and the appropriate timing of administration should be carefully considered.

Store-Operated Calcium Entry Increases Nuclear Calcium in Adult Rat Atrial and Ventricular Cardiomyocytes.

Store-operated calcium entry (SOCE) in cardiomyocytes may be involved in cardiac remodeling, but the underlying mechanisms remain elusive. We hypothesized that SOCE may increase nuclear calcium, which alters gene expression via calcium/calmodulin-dependent enzyme signaling, and elucidated the underlying cellular mechanisms. An experimental protocol was established in isolated adult rat cardiomyocytes to elicit SOCE by re-addition of calcium following complete depletion of sarcoplasmic reticulum (SR) calcium and to quantify SOCE in relation to the electrically stimulated calcium transient (CaT) measured in the same cell before SR depletion. Using confocal imaging, calcium changes were recorded simultaneously in the cytosol and in the nucleus of the cell. In ventricular myocytes, SOCE was observed in the cytosol and nucleus amounting to ≈15% and ≈25% of the respective CaT. There was a linear correlation between the SOCE-mediated calcium increase in the cytosol and nucleus. Inhibitors of TRPC or Orai channels reduced SOCE by ≈33-67%, whereas detubulation did not. In atrial myocytes, SOCE with similar characteristics was observed in the cytosol and nucleus. However, the SOCE amplitudes in atrial myocytes were ≈two-fold larger than in ventricular myocytes, and this was associated with ≈1.4- to 3.6-fold larger expression of putative SOCE proteins (TRPC1, 3, 6, and STIM1) in atrial tissue. The results indicated that SOCE in atrial and ventricular myocytes is able to cause robust calcium increases in the nucleus and that both TRPC and Orai channels may contribute to SOCE in adult cardiomyocytes.

Characterization of the pathogenic α-Synuclein Variant V15A in Parkinson´s disease.

Despite being a major component of Lewy bodies and Lewy neurites, pathogenic variants in the gene encoding alpha-Synuclein (α-Syn) are rare. To date, only four missense variants in the SNCA gene, encoding α-Syn have unequivocally been shown to be disease-causing. We here describe a Parkinson´s disease patient with early cognitive decline carrying an as yet not fully characterized variant in SNCA (NM_001146055: c.44T > C, p.V15A). We used different cellular models, including stably transfected neuroblastoma (SH-SY5Y) cell cultures, induced pluripotent stem cell (iPSC)-derived neuronal cultures, and generated a Drosophila model to elucidate the impact of the p.V15A variant on α-Syn function and aggregation properties compared to other known pathogenic variants. We demonstrate that p.V15A increased the aggregation potential of α-Syn and the levels of apoptotic markers, and impaired the mitochondrial network. Moreover, p.V15A affects the flying ability and survival of mutant flies. Thus, we provide supporting evidence for the pathogenicity of the p.V15A variant, suggesting its inclusion in genetic testing approaches.

Controlling an Unprecedented Outbreak with Vancomycin-Resistant Enterococcus faecium in Germany, October 2015 to November 2019.

Hospital outbreaks with vancomycin-resistant enterococci (VRE) pose a serious health threat and a challenge to infection prevention and control (IPC). We herein report on a VRE outbreak of unprecedented extent in Southern Germany (October 2015-November 2019). We used descriptive epidemiology and whole-genome sequencing (WGS) for a detailed outbreak investigation. Of the 2905 cases, 2776 (95.3%) were colonized, whereas from 127 (3.7%), VRE could be isolated from otherwise sterile body fluids or sites unlikely for enterococci colonization. Cases had a median age of 78 years (IQR 68-84) and 1339/2905 (46%) were female. The majority of isolates sequenced belonged to the clonal lineage ST80/CT1013 (212/397, 53%). Nosocomial transmission was observed as well as the constant import of VRE into the hospital. Extensive IPC measures were implemented and terminated the outbreak in late 2019, eventually. Our study shows that the combination of epidemiological and genomic analyses is indispensable for comprehensive outbreak investigations. The adaptation of IPC measures to these findings, their timely implementation, and strict execution also allow containment of large VRE outbreaks in hospital settings.

[Strategies for the rational use of antibiotics in the outpatient sector-results of a workshop with key stakeholders in the healthcare system]. / Strategien zum rationalen Antibiotikaeinsatz im ambulanten Sektor ­ Ergebnisse eines Workshops mit wichtigen Akteuren des Gesundheitswesens.

In November 2021, the Federal Ministry of Health (BMG) organized the one-day virtual workshop "Rational antibiotic use in the outpatient sector - potential and opportunities for change" with scientific support from the Robert Koch Institute (RKI). The aim was to collect strategies for promoting the appropriate use of antibiotics in the outpatient sector. With 114 participants, important stakeholders of the healthcare system were represented. In the run-up to the event, the invited participants had already been asked to take part in an online survey on perspectives, experiences, and ideas for the rational use of antibiotics in the outpatient sector. The answers were analyzed and presented at the workshop.The workshop was introduced with plenary lectures on the German Antibiotic Resistance Strategy (DART) and the antibiotic resistance situation in Germany. All experts participated in 10 working group discussions; the resulting findings were presented in the concluding plenary session. In this conference report, selected aspects of these discussions are presented. The insights gained are to be incorporated into the "DART 2030" strategy.

A prática clínica de Terapia Ocupacional em tempos de pandemia: a intervenção precoce através da telessaúde / The clinical practice of occupational therapy in pandemic times: early intervention through telehealth / La práctica clínica en terapia ocupacional en tempos de pandemia: la atención temprana desde la telesalud

Contextualização: Frente aos desafios impostos pela pandemia da COVID-19, a Telessaúde se destaca por possibilitar a continuidade do cuidado a distância. Processo de Intervenção: Trata- se de uma Análise da Prática, com o objetivo de relatar intervenções clínicas da Terapia Ocupacional em Intervenção Precoce, através da teleconsulta e do telemonitoramento, com crianças e seus pais/cuidadores (as). Análise crítica da prática: O estudo aponta a Telessaúde como uma importante ferramenta para terapeutas ocupacionais que trabalham com Intervenção Precoce, destacando as potencialidades para o apoio do desenvolvimento infantil, bem como as dificuldades dessa modalidade. Síntese das considerações: A prática considera a continuidade da utilização da Telessaúde após o período da pandemia, tendo em vista os resultados positivos no processo de cuidado. Além disso, destaca o papel das crianças como sujeitos ativos no processo de tratamento. Ademais, aponta a relevância da Telessaúde no processo de formação profissional através de intervenções inovadoras.(AU) Palavras-chave: Desenvolvimento Infantil. Terapia Ocupacional. Telessaúde Telemonitoramento. Pandemia.

Contextualization: Faced with the challenges posed by the COVID-19 pandemic, Telehealth stands out for allowing the continuity of care at a distance. Intervention Process: This work is a Practice Analysis, with the objective of reporting clinical interventions of Occupational Therapy in Early Intervention through teleconsultation and telemonitoring with children and their parents/caregivers. Critical analysis of the practice: The study points to Telehealth as an important tool for occupational therapists who work with Early Intervention, highlighting the potential for supporting child development, as well as the difficulties of this modality. Summary of considerations: The practice considers the continuity of Telehealth usage after the pandemic period, given the positive results in the care process. Moreover, it highlights the role of children as active subjects in the treatment process. Furthermore, it points out the relevance of Telehealth in the professional training process through innovative interventions.(AU) Keywords: Child Development. Occupational Therapy. Telehealth. Telemonitoring. Pandemic

Contextualización: Delante de los desafíos impuestos por la pandemia del COVID-19, la Telesalud se destaca por posibilitar la continuidad del cuidado a distancia. Proceso de intervención: Se trata de un Análisis de la Práctica, con el objetivo de relatar intervenciones clínicas de la Terapia Ocupacional en Atención Temprana a través de la Teleconsulta y del Telemonitoreo con niños y sus padres/niñeras. Análisis crítico de la práctica: El estudio apunta la Telesalud como una importante herramienta para terapeutas ocupacionales que trabajan con Atención Temprana, destacando las potencialidades para el apoyo del desarrollo infantil, así como las dificultades de esa modalidad. Resumen de consideraciones: La práctica considera la continuidad de la utilización de la Telesalud tras el periodo de pandemia, teniendo en cuenta los resultados positivos en el proceso de cuidado. Añadido a eso, destaca el papel de los niños como sujetos activos en el proceso de tratamiento. Además, apunta la relevancia de la Telesalud en el proceso de formación profesional a través de intervenciones innovadoras.(AU) Palabras clave: Desarrollo Infantil. Terapia Ocupacional. Telesalud. Telemonitorización Pandemia.

Longitudinal SARS-CoV-2 seroepidemiological investigation among healthcare workers at a tertiary care hospital in Germany.

BACKGROUND: SARS-CoV-2 cases in Germany increased in early March 2020. By April 2020, cases among health care workers (HCW) were detected across departments at a tertiary care hospital in Berlin, prompting a longitudinal investigation to assess HCW SARS-CoV-2 serostatus with an improved testing strategy and associated risk factors. METHODS: In May/June and December 2020, HCWs voluntarily provided blood for serology and nasopharyngeal/oropharyngeal (NP/OP) samples for real-time polymerase chain reaction (PCR) and completed a questionnaire. A four-tiered SARS-CoV-2 serological testing strategy including two different enzyme-linked immunosorbent assays (ELISA) and biological neutralization test (NT) was used. ELISA-NT correlation was assessed using Pearson's correlation coefficient. Sociodemographic and occupational factors associated with seropositivity were assessed with multivariate logistic regression. RESULTS: In May/June, 18/1477 (1.2%) HCWs were SARS-CoV-2 seropositive, followed by 56/1223 (4.6%) in December. Among those tested in both, all seropositive in May/June remained seropositive by ELISA and positive by NT after 6 months. ELISA ratios correlated well with NT titres in May/June (R = 0.79) but less so in December (R = 0.41). Those seropositive reporting a past SARS-CoV-2 positive PCR result increased from 44.4% in May/June to 85.7% in December. HCWs with higher occupational risk (based on profession and working site), nurses, males, and those self-reporting COVID-19-like symptoms had significantly higher odds of seropositivity. CONCLUSIONS: This investigation provides insight into the burden of HCW infection in this local outbreak context and the antibody dynamics over time with an improved robust testing strategy. It also highlights the continued need for effective infection control measures particularly among HCWs with higher occupational risk.

Instrumentos Padronizados para Avaliação de Aspectos Sensoriais no Bebê do Nascimento aos Seis Meses: uma Revisão Integrativa / Standardized Instruments for the Evaluation of Sensory Aspects in Infants from Birth to the Sixth Month: an Integrative Review

RESUMO: Este trabalho teve como objetivo identificar os instrumentos padronizados que avaliam aspectos sensoriais do nascimento aos seis meses. Trata-se de uma Revisão Integrativa de estudos publicados entre 2010 e 2020, nas bases de dados Bireme, SciElo, Scopus, Lilacs e Pubmed/Medline, além da Biblioteca Digital Brasileira de Teses e Dissertações e nos periódicos Cadernos Brasileiros de Terapia Ocupacional da Universidade Federal de São Carlos, Revista de Terapia Ocupacional da Universidade de São Paulo e na Revista Interinstitucional Brasileira de Terapia Ocupacional (REVISBRATO). Adotaram-se fixamente os descritores "infant" e "sensation disorders", o termo livre "scale" e o operador boleano "AND" e, no formato alternado, os termos livres "Sensory Profile", "Sensory Functions" e "Sensory Processing". Incluíram-se estudos em português, inglês e espanhol. Estudos de revisão, pesquisas com profissionais e que não correspondiam à temática foram excluídos dessa revisão. Foram selecionados seis estudos. Entre os oito instrumentos identificados, apenas o Infant/Toddler Sensory Profile e o Test of Sensory Functions Infants avaliam especificamente aspectos sensoriais. Identificou-se o uso de dois instrumentos de avaliação do contexto em que a criança está inserida para avaliar aspectos sensoriais como o HOME e o AHEMED e outros instrumentos de análise geral do desenvolvimento como a Escala Bayley III. Há necessidade de ampliação do uso de instrumentos específicos de análise do processamento sensorial para aumentar as oportunidades de familiares, professores e profissionais a apoiar o desenvolvimento do bebê, além de identificar sinais de risco que, quando tratados, diminuem os efeitos iatrogênicos no desenvolvimento.

ABSTRACT: This work aimed to identify the standardized instruments that assess sensory aspects in infants from birth to the sixth month. It is an Integrative Review of studies published from 2010 to 2020 in Bireme, SciElo, Scopus, Lilacs and Pubmed/Medline databases, in the Brazilian Digital Library of Theses and Dissertations, and in the Brazilian Journal of Occupational Therapy from the Universidade Federal de São Carlos, in the Journal of Occupational Therapy from the University of São Paulo and the Interinstitutional Brazilian Journal of Occupational Therapy (REVISBRATO). The descriptors "infant" and "sensation disorders", the free term "scale", and the Boolean operator "AND" were fixedly adopted, whereas the free terms "Sensory Profile", "Sensory Functions" and "Sensory Processing" were alternately adopted. Studies in Portuguese, English and Spanish were included. Review studies, researches with professional and others that did not correspond to the theme were excluded from this review. Six studies were selected. Among the eight identified instruments, only the Infant/Toddler Sensory Profile and the Test of Sensory Functions in Infants specifically assess sensory aspects. The use of two instruments for the assessment of the context in which the infant is inserted to assess sensory aspect, as HOME and AHEMED, were identified, as well as other instruments for general analysis of development, as Bayley-III. There is the need to broaden the use of specific instruments for the analysis of sensory processing in order to increase the opportunities for family members, teachers and professionals to support the infant development, as well as to identify risk signs that, when treated, decrease iatrogenic effects in development.

Epidemiological and clinical characteristics of SARS-CoV-2 infections at a testing site in Berlin, Germany, March and April 2020-a cross-sectional study.

OBJECTIVE: In Berlin, the first public severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing site started 1 day after the first case in the city occurred. We describe epidemiological and clinical characteristics and aim at identifying risk factors for SARS-CoV-2 detection during the first 6 weeks of operation. METHODS: Testing followed national recommendations, but was also based on the physician's discretion. We related patient characteristics to SARS-CoV-2 test positivity for exploratory analyses using a cross-sectional, observational study design. RESULTS: Between 3 March and 13 April 2020, 5179 individuals attended the site (median age 34 years; interquartile range 26-47 years). The median time since disease onset was 4 days (interquartile range 2-7 days). Among 4333 persons tested, 333 (7.7%) were positive. Test positivity increased up to 10.3% (96/929) during the first 3 weeks and then declined, paralleling Germany's lock-down and the course of the epidemic in Berlin. Strict adherence to testing guidelines resulted in 10.4% (262/2530) test positivity, compared with 3.9% (71/1803) among individuals tested for other indications. A nightclub was a transmission hotspot; 27.7% (26/94) of one night's visitors were found positive. Smell and/or taste dysfunction indicated coronavirus disease 2019 (COVID-19) with 85.6% specificity (95% CI 82.1%-88.1%). Four per cent (14/333) of those infected were asymptomatic. Risk factors for detection of SARS-CoV-2 infection were recent contact with a positive case (second week after contact, OR 3.42; 95% CI 2.48-4.71), travel to regions of high pandemic activity (e.g. Austria, OR 4.16; 95% CI 2.48-6.99), recent onset of symptoms (second week, OR 3.61; 95% CI 1.87-6.98) and an impaired sense of smell/taste (4.08; 95% CI 2.36-7.03). CONCLUSIONS: In this young population, early-onset presentation of COVID-19 resembled flu-like symptoms, except for smell and/or taste dysfunction. Risk factors for SARS-CoV-2 detection were return from regions with high incidence and contact with confirmed SARS-CoV-2 cases, particularly when tests were administered within the first 2 weeks after contact and/or onset of symptoms.

Antimicrobial resistance of Escherichia coli isolates from outpatient urinary tract infections in women in six European countries including Russia.

OBJECTIVES: In the Northern Dimension Antibiotic Resistance Study (NoDARS), Finland, Germany, Latvia, Poland, Russia and Sweden collected urine samples from outpatient women (aged 18-65years) with symptoms of uncomplicated urinary tract infection (UTI) to investigate the levels of antimicrobial resistance (AMR) among Escherichia coli isolates. METHODS: A total of 775 E. coli isolates from 1280 clinical urine samples were collected from October 2015 to January 2017. Antimicrobial susceptibility testing was performed and the results were interpreted according to European Committee on Antimicrobial Susceptibility Testing (EUCAST) criteria. RESULTS: Overall AMR rates to the commonly used antibiotics nitrofurantoin, fosfomycin and mecillinam (except for Germany that was missing a result for mecillinam) were 1.2%, 1.3% and 4.1%, respectively. The highest overall resistance rates were determined for ampicillin (39.6%), trimethoprim (23.8%), trimethoprim/sulfamethoxazole (22.4%), amoxicillin/clavulanic acid (16.7%) and ciprofloxacin (15.1%), varying significantly between countries. The rate of extended-spectrum ß-lactamase (ESBL) production was 8.7%. None of the isolates showed resistance to meropenem. CONCLUSIONS: In most cases, low AMR rates were detected against the first-line antibiotics recommended in national UTI treatment guidelines, giving support to their future use. These results also support the European Association of Urology guidelines stating that nitrofurantoin, fosfomycin and mecillinam are viable treatment options for uncomplicated UTI.

Decline in the proportion of methicillin resistance among Staphylococcus aureus isolates from non-invasive samples and in outpatient settings, and changes in the co-resistance profiles: an analysis of data collected within the Antimicrobial Resistance Surveillance Network, Germany 2010 to 2015.

BACKGROUND: Recent analysis of trends of non-invasive infections with methicillin resistant Staphylococcus aureus (MRSA), of trends of MRSA infections in outpatient settings and of co-resistance profiles of MRSA isolates are scarce or lacking in Germany. METHODS: We analysed data from the Antimicrobial Resistance Surveillance Network (ARS). We included in the analysis the first isolate of S. aureus per patient and year, which had a valid test result for oxacillin resistance and which was not a screening sample. We limited the analysis to isolates from facilities, which contributed to ARS for all six years between 2010 and 2015. We compared the proportion of methicillin resistance among S. aureus isolates by calendar year using Chi-square and Fisher's exact test. We corrected for multiple testing using the Bonferroni correction. We stratified the analysis by sample type including various non-invasive sample types and by type of care (e.g. hospital versus outpatient clinic). We also analysed the non-susceptibility of MRSA to selected antibiotics. RESULTS: The analysis included 148,561 S. aureus isolates. The distribution of these isolates by sex, age, region, sample type, clinical speciality and type of care remained relatively stable over the six years analysed. The proportion of MRSA among S. aureus isolates decreased continuously from 16% in 2010 to 10% in 2015. This decrease was seen for all types of care and for the majority of sample types, including the outpatient clinic (12 to 8%), as well as blood culture (19 to 9%), urine samples (25 to 15%), swabs (14 to 9%), respiratory samples (22 to 11%) and lesions (15 to 10%). The non-susceptibility of MRSA isolates to tobramycin (47 to 32%), ciprofloxacin (95 to 89%), moxifloxacin (94 to 84%), clindamycin (80 to 71%) and erythromycin (81 to 72%) declined markedly, but it increased for tetracyclines (6 to 9%) and gentamicin (3 to 6%). Non-susceptibility of MRSA to linezolid, teicoplanin, tigecycline and vancomycin remained rare. CONCLUSION: This analysis indicates that the incidence of MRSA infections declined in a variety of settings in Germany between 2010 and 2015 and that the co-resistance profiles of MRSA isolates changed markedly.

Occurrence of cfr-mediated multiresistance in staphylococci from veal calves and pigs, from humans at the corresponding farms, and from veterinarians and their family members.

This study reports on the emergence of linezolid-resistant coagulase-negative staphylococci (CoNS) containing the multiresistance gene cfr in veal calves and pigs, as well as in humans exposed to these animals. CoNS (Staphylococcus auricularis, Staphylococcus cohnii, Staphylococcus lentus, Staphylococcus kloosii, Staphylococcus sciuri, Staphylococcus simulans), but not Staphylococcus aureus, carrying the gene cfr were detected in samples of 12 out of 52 calves at three farms which had a history of florfenicol use. Nasal swabs from 10 humans living on these farms were negative for cfr-carrying staphylococci. Nasal swabs taken from 142 calves at 16 farms in the same area that did not use florfenicol were also negative for cfr-carrying staphylococci. 14 cfr-carrying CoNS (S. kloosii, S. saprophyticus, S. simulans) were detected in three of eight conventional pig farms investigated. One of 12 humans living on these farms harboured a cfr-carrying S. cohnii. Among the nasal swabs taken from 169 veterinarians from all over Germany, four (2.3%) were positive for cfr-carrying CoNS (three S. epidermidis, one S. saprophyticus), and three (1.1%) of 263 contact persons of this group also harboured cfr-carrying CoNS (one S. epidermidis, two S. saprophyticus). In vitro conjugation of cfr by filter mating to S. aureus 8325-4 was possible for 10 of 34CoNS and the cfr gene was associated with plasmids of 38-40kb. Moreover, a total of 363 humans of a German municipal community were investigated for nasal carriage of cfr-carrying staphylococci to get an idea whether such isolates are disseminated as nasal colonizers in non-hospitalized humans in the community, were all negative.

Persistence of nasal colonisation with methicillin resistant Staphylococcus aureus CC398 among participants of veterinary conferences and occurrence among their household members: A prospective cohort study, Germany 2008-2014.

There are only few data on the persistence and transmission of methicillin resistant Staphylococcus aureus (MRSA) of the clonal complex (CC) 398 among veterinarians and their household members. We therefore investigated the long-term colonisation with MRSA CC398 among participants of veterinary conferences in Germany in 2008/2009 and their household members. Forty-five initially MRSA CC398 positive and 180 initially MRSA CC398 negative conference participants were included in a longitudinal study. These persons and their household members were tested for nasal colonisation in 2011, 2012 and 2014. Of 31 continuously tested and initially MRSA CC398 positive participants only 8 (26%) were colonized with MRSA CC398at all 4 time points, 4 (13%) of them consistently with the same spa type. Among initially MRSA CC398 negative participants, 13 (7%) were tested MRSA CC398 positive at least once during the follow-up period. Data for household members at least at one time point were available for 185 households. Of these 21 (11%) households had one or more household member who tested positive for MRSA CC398at least once. The odds of household members to be MRSA CC398 positive was 12 times higher (95% confidence interval 4-37) when the conference participant tested MRSA CC398 positive in 2008/2009. This association remained strong when household members working in veterinary medicine or livestock farms were excluded. In summary, these data suggest that colonisation with MRSA CC398 is partially transient and that household members of MRSA CC398 colonized persons are at an increased risk of colonisation with MRSA CC398.

Incidence of invasive meticillin-resistant Staphylococcus aureus infections in Germany, 2010 to 2014.

Voluntary surveillance systems in Germany suggest a recent decline in the incidence of infections (subsequent to at least 2010) with meticillin-resistant Staphylococcus aureus (MRSA) from various types of specimens and settings. We asked whether this decline is reflected by data from the mandatory national surveillance system for invasive MRSA infections. Our analysis is based on the population in Germany in 2010 to 2014. Cases were identified from passive reporting by microbiological laboratories of the diagnosis of MRSA from blood culture or cerebrospinal fluid. Respective clinical data were subsequently added to the notification. We calculated risk ratios (RR) between consecutive years, stratifying cases by sex, age and federal state of residence. The national incidence increased from 4.6 episodes per 100,000 persons in 2010 to 5.6 in 2012 (2011 vs 2010: RR: 1.13, 95% confidence interval (CI): 1.08-1.18; 2012 vs 2011: RR: 1.08, 95% CI: 1.04-1.13). It stagnated at 5.4 per 100,000 in 2013 (RR: 0.97, 95% CI: 0.93-1.01) before declining to 4.8 in 2014 (RR: 0.88, 95% CI: 0.84-0.91). This trend was observed in most, but not all federal states and strata of sex and age groups. Only 204 of 20,679 (1%) episodes of infection were notified as belonging to an outbreak. Our analysis corroborates previous findings that the incidence of invasive MRSA infections in Germany may be declining.

What caused the outbreak of ESBL-producing Klebsiella pneumoniae in a neonatal intensive care unit, Germany 2009 to 2012? Reconstructing transmission with epidemiological analysis and whole-genome sequencing.

OBJECTIVE: We aimed to retrospectively reconstruct the timing of transmission events and pathways in order to understand why extensive preventive measures and investigations were not sufficient to prevent new cases. METHODS: We extracted available information from patient charts to describe cases and to compare them to the normal population of the ward. We conducted a cohort study to identify risk factors for pathogen acquisition. We sequenced the available isolates to determine the phylogenetic relatedness of Klebsiella pneumoniae isolates on the basis of their genome sequences. RESULTS: The investigation comprises 37 cases and the 10 cases with ESBL (extended-spectrum beta-lactamase)-producing K. pneumoniae bloodstream infection. Descriptive epidemiology indicated that a continuous transmission from person to person was most likely. Results from the cohort study showed that 'frequent manipulation' (a proxy for increased exposure to medical procedures) was significantly associated with being a case (RR 1.44, 95% CI 1.02 to 2.19). Genome sequences revealed that all 48 bacterial isolates available for sequencing from 31 cases were closely related (maximum genetic distance, 12 single nucleotide polymorphisms). Based on our calculation of evolutionary rate and sequence diversity, we estimate that the outbreak strain was endemic since 2008. CONCLUSIONS: Epidemiological and phylogenetic analyses consistently indicated that there were additional, undiscovered cases prior to the onset of microbiological screening and that the spread of the pathogen remained undetected over several years, driven predominantly by person-to-person transmission. Whole-genome sequencing provided valuable information on the onset, course and size of the outbreak, and on possible ways of transmission.

Força de preensão manual e aptidões físicas: um estudo preditivo com idosos ativos / Grip strength and physical fitness: a predictive study with active elderly

INTRODUÇÃO: A avaliação da força de preensão manual (FPM) é um método útil para avaliar a força muscular global de pessoas idosas. OBJETIVO: Verificar a relação entre a FPM e as aptidões físicas de idosos praticantes de exercícios físicos, segundo o sexo. MÉTODOS: Estudo descritivo com 106 idosas e 30 idosos praticantes de exercícios físicos num programa de extensão universitário, que foram submetidos a bateria Senior Fitness Test (força dos membros inferiores, força dos membros superiores, flexibilidade dos membros inferiores, agilidade/equilíbrio dinâmico, flexibilidade dos membros superiores e resistência aeróbica). A FPM foi avaliada por um dinamômetro de preensão manual. Utilizou-se estatística descritiva (média e desvio-padrão) e inferencial por meio do teste U de Mann Whitney para amostras independentes e regressão linear simples. O nível de significância foi 5%. RESULTADOS: A FPM direita e esquerda foi maior nos homens do que nas mulheres (p<0,001). Observou-se que a FPM é boa preditora da força de membros superiores (aproximadamente 11,4%) e a resistência aeróbica (aproximadamente 14,0%) nas mulheres, enquanto nos homens a FPM explica essas aptidões (aproximadamente 22,0% e 20,0%, respectivamente) e também a agilidade/equilíbrio (aproximadamente, 21,0%). CONCLUSÕES: Observa-se que, entre idosos praticantes de exercícios físicos, a FPM prediz melhor apenas a variação de testes físicos que apresentam bom desempenho, o que aumenta o poder de explicação e predição entre os homens, já que estes obtiveram melhores desempenhos nas avaliações físicas. .

INTRODUCTION: Evaluation of handgrip strength (HS) is a useful method for assessing overall muscle strength of old people. OBJECTIVE: To investigate the relationship between HS and the physical skills of old people practitioners of physical exercise, according to sex. METHODS: A descriptive study with 106 women and 30 man practicing physical exercises in a university extension program, which underwent a battery of Senior Fitness Test (lower limb strength, upper limbs strength, lower limbs flexibility, agility / dynamic balance, upper limb flexibility and aerobic endurance). HS was evaluated by a handgrip dynamometer. We used descriptive statistics (mean and standard deviation) and inferential U test of Mann Whitney tests for independent samples and simple linear regression. The significance level was 5%. RESULTS: The HS right and left was higher in men than in women (p <0.001). It was observed that HS is a good predictor of upper limb strength (approximately 11.4%) and aerobic endurance (approximately 14.0%) in women, while in men, HS explains these skills (approximately 22.0% and 20.0%, respectively) and also the agility / dynamic balance (approximately 21.0%). CONCLUSIONS: We observed that, among elderly practicing physical exercises, HS better predicts only the variation of physical tests that perform well, which increases the power of explanation and prediction among men, as they had better performance in physical assessments. .