InfectionPub Date : 2024-09-16DOI: 10.1007/s15010-024-02394-8
Franz Ehm, Falko Tesch, Simone Menzer, Friedrich Loser, Lars Bechmann, Annika Vivirito, Danny Wende, Manuel Batram, Tilo Buschmann, Marion Ludwig, Martin Roessler, Martin Seifert, Giselle Sarganas Margolis, Lukas Reitzle, Christina Koenig, Claudia Schulte, Pedro Ballesteros, Stefan Bassler, Thomas Bitterer, Cordula Riederer, Reinhard Berner, Christa Scheidt-Nave, Jochen Schmitt, Nicole Toepfner
{"title":"Long/post-COVID in children and adolescents: symptom onset and recovery after one year based on healthcare records in Germany","authors":"Franz Ehm, Falko Tesch, Simone Menzer, Friedrich Loser, Lars Bechmann, Annika Vivirito, Danny Wende, Manuel Batram, Tilo Buschmann, Marion Ludwig, Martin Roessler, Martin Seifert, Giselle Sarganas Margolis, Lukas Reitzle, Christina Koenig, Claudia Schulte, Pedro Ballesteros, Stefan Bassler, Thomas Bitterer, Cordula Riederer, Reinhard Berner, Christa Scheidt-Nave, Jochen Schmitt, Nicole Toepfner","doi":"10.1007/s15010-024-02394-8","DOIUrl":"https://doi.org/10.1007/s15010-024-02394-8","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>Evidence on the incidence and persistence of post-acute sequelae of COVID-19 (PASC) among children and adolescents is still limited.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>In this retrospective cohort study, 59,339 children and adolescents with laboratory-confirmed COVID-19 in 2020 and 170,940 matched controls were followed until 2021-09-30 using German routine healthcare data. Incidence rate differences (ΔIR) and ratios (IRR) of 96 potential PASC were estimated using Poisson regression. Analyses were stratified according to age (0–11, 12–17 years), and sex. At the individual level, persistence of diagnoses in patients with onset symptoms was tracked starting from the first quarter post-infection.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>At 0–3 month follow-up, children and adolescents with a previous SARS-CoV-2 infection showed a 34% increased risk of adverse health outcome, and approximately 6% suffered from PASC in association with COVID-19. The attributable risk was higher among adolescents (≥ 12 years) than among children. For most common symptoms, IRRs largely persisted at 9–12 month follow-up. IRR were highest for rare conditions strongly associated with COVID-19, particularly inflammatory conditions among children 0–11 years, and chronic fatigue and respiratory insufficiency among adolescents. Tracking of diagnoses at the individual level revealed similar rates in the decline of symptoms among COVID-19 and control cohorts, generally leaving less than 10% of the patients with persistent diagnoses after 12 months.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Although very few patients presented symptoms for longer than 12 months, excess morbidity among children and, particularly, adolescents with a history of COVID-19 means a relevant burden for pediatric care.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":"17 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142257896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-10DOI: 10.1007/s15010-024-02348-0
Anna Rosa Garbuglia, Gjergji Koja, Umbertina Villano, Claudia Minosse, Michele Equestre, Silvia Pauciullo, Antonio Coppola, Elisabetta Madonna, Giovanna Picchi, Jessica Di Biase, Margherita Dalessandro, Anna Rughetti, Katia Casinelli, Barbara Camilloni, Rinalda Mariani, Alessandro Grimaldi, Anna Rita Ciccaglione, Roberto Bruni
{"title":"HEV-3 subtypes and strains detected in cases of HEV infection in central Italy from 2015 to 2023","authors":"Anna Rosa Garbuglia, Gjergji Koja, Umbertina Villano, Claudia Minosse, Michele Equestre, Silvia Pauciullo, Antonio Coppola, Elisabetta Madonna, Giovanna Picchi, Jessica Di Biase, Margherita Dalessandro, Anna Rughetti, Katia Casinelli, Barbara Camilloni, Rinalda Mariani, Alessandro Grimaldi, Anna Rita Ciccaglione, Roberto Bruni","doi":"10.1007/s15010-024-02348-0","DOIUrl":"https://doi.org/10.1007/s15010-024-02348-0","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>HEV is an emerging pathogen in Europe and was previously shown to be hyperendemic in areas of Abruzzo and Lazio, Central Italy. No systematic analysis of the HEV strains responsible for human infections over several years in Central Italy has previously been reported. Aim of the study was the molecular characterization of HEV from autochthonous hepatitis E cases occurred in Abruzzo and Lazio between 2015 and 2023.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Samples from 118 cases collected as part of virological surveillance in Abruzzo and Lazio from 2015 to 2023 were subjected to HEV sequencing and phylogenetic analysis.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>The main observed subtype was 3f, followed by 3c and 3e. The annual subtype distribution was quite stable over the observation period, but 3f cases tended to concentrate in winter/early spring whereas 3e cases in summer. Phylogenetic clusters of highly related sequences (a) highlighted unrecognized “point source outbreaks”, (b) provided molecular support to temporally and/or geographically linked cases and (c) provided evidence for transmission of identical/highly related strains up to months/years following their first detection.</p><h3 data-test=\"abstract-sub-heading\">Conclusions</h3><p>The data provide an overview of the HEV strains responsible for human infections over eight years in Central Italy. The observed subtype distribution appears to agree better with the subtype distribution reported in Italy in pigs rather than in geographically matched wild boars, suggesting pig and its derivate food was a more frequent source of infection than wild boar in Abruzzo and Lazio. Molecular characterization is essential to recognize “point source outbreaks” and to monitor HEV circulation.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":"6 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-10DOI: 10.1007/s15010-024-02385-9
Sarah Maslowski, Sven Hohenstein, Andreas Bollmann, Christian Karagiannidis, Cihan Papan, Serge C. Thal, Stefan Wirth, Tobias Tenenbaum, Malik Aydin
{"title":"The severity of respiratory syncytial virus infection in children during the SARS-CoV-2/COVID-19 pandemic: A nationwide study of 11,915 cases in Germany","authors":"Sarah Maslowski, Sven Hohenstein, Andreas Bollmann, Christian Karagiannidis, Cihan Papan, Serge C. Thal, Stefan Wirth, Tobias Tenenbaum, Malik Aydin","doi":"10.1007/s15010-024-02385-9","DOIUrl":"https://doi.org/10.1007/s15010-024-02385-9","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Purpose</h3><p>Respiratory syncytial virus (RSV) infection is a major cause of childhood hospitalization. The COVID-19 pandemic has disrupted the usual seasonal pattern of RSV, resulting in high activity during the off-season. This study aims to evaluate the effects of the pandemic on the severity of RSV infections.</p><h3 data-test=\"abstract-sub-heading\">Methods</h3><p>Data from 11,915 children hospitalized due to RSV infection between 2016 and 2022 were analyzed. The hospitalized patients were categorized into two groups, from January 2016 to February 2020 (PreCoV19 group) and from March 2020 to December 2022 (CoV19 group). The hospitalization duration, intensive care unit (ICU) admissions, length of stay at ICU, mechanical ventilation requirement and duration, Elixhauser comorbidity index scores, and in-hospital mortality were analyzed.</p><h3 data-test=\"abstract-sub-heading\">Results</h3><p>Children in the PreCoV19 group had a mean age of 0.4 ± 0.7, whereas those in the CoV19 group had a mean age of 0.6 ± 1.0 years. Children during the pandemic had significantly shorter hospital stays (4.3 ± 2.6 days) compared to children of the pre-pandemic period (4.9 ± 3.3 days). Although ICU admission rates did not change, the duration of ICU stays decreased in the CoV19 group. Moreover, the in-hospital mortality did not differ between the groups. A multivariable analysis showed that younger age, regardless of the pandemic period, was associated with prolonged hospital stays, higher ICU admission rates, and an increased requirement for mechanical ventilation.</p><h3 data-test=\"abstract-sub-heading\">Conclusion</h3><p>Our findings highlight significant changes of the clinical characteristics of RSV infections during the pandemic, with implications for clinical management and public health strategies.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":"9 1","pages":""},"PeriodicalIF":7.5,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142199710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-09DOI: 10.1007/s15010-024-02384-w
Laura Wagner, Heike Schneider, Peter B Luppa, Kathrin Schröder, Nina Wantia, Christiane Querbach, Samuel D Jeske, Tobias Lahmer, Kathrin Rothe, Miriam Dibos, Florian Voit, Johanna Erber, Christoph D Spinner, Jochen Schneider, Julian Triebelhorn
{"title":"Evaluation of a host-protein signature score for differentiating between bacterial and viral infections: real-life evidence from a German tertiary hospital.","authors":"Laura Wagner, Heike Schneider, Peter B Luppa, Kathrin Schröder, Nina Wantia, Christiane Querbach, Samuel D Jeske, Tobias Lahmer, Kathrin Rothe, Miriam Dibos, Florian Voit, Johanna Erber, Christoph D Spinner, Jochen Schneider, Julian Triebelhorn","doi":"10.1007/s15010-024-02384-w","DOIUrl":"https://doi.org/10.1007/s15010-024-02384-w","url":null,"abstract":"<p><strong>Purpose: </strong>A host-protein signature score, consisting of serum-concentrations of C-reactive protein, tumour necrosis factor-related apoptosis-inducing ligand, and interferon gamma-induced protein 10, was validated for distinguishing between bacterial and viral infections as an antimicrobial stewardship measure for routine clinical practice among adult patients in a German tertiary hospital.</p><p><strong>Methods: </strong>This single-centre, explorative study prospectively assessed the host-protein signature score, comparing it with serum procalcitonin (PCT) in patients with blood stream infections (BSI) and evaluating its efficacy in patients with viral infections against the standard of care (SOC) to assess the need for antibiotics due to suspected bacterial super/coinfection. Manufacturer-specified threshold scores were used to differentiate viral (< 35) and bacterial (> 65) infections.</p><p><strong>Results: </strong>Ninety-seven patients (BSI [n = 56]; viral infections [n = 41]) were included. The score (cut-off score > 65) tended to detect BSI with higher sensitivity than did PCT (cut-off > 0.5 ng/mL) (87.5% vs. 76.6%). Three patients (5.4%) with BSI had a score < 35. One patient with BSI did not receive antibiotic treatment following SOC prior to positive blood culture results. Among patients with viral infections, 29 (70.7%) had scores > 65, indicating bacterial superinfections. Additionally, 11 patients (26.8%) had scores < 35, indicating no bacterial superinfections. In total, the antibiotic treatment discrepancy in the viral group between the SOC and a host-protein signature score guided approach was 2/41 patients (4.9%).</p><p><strong>Conclusion: </strong>The score tended towards a higher sensitivity in detecting BSI than that with PCT. However, its impact on reducing antibiotic use in viral infections was minor compared with that of SOC.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-09DOI: 10.1007/s15010-024-02379-7
Mikel Mancheño-Losa, Oscar Murillo, Eva Benavent, Luisa Sorlí, Melchor Riera, Javier Cobo, Natividad Benito, Laura Morata, Alba Ribera, Beatriz Sobrino, Marta Fernández-Sampedro, Elena Múñez, Alberto Bahamonde, José María Barbero, Mª Dolores Del Toro, Jenifer Villa, Raül Rigo-Bonnin, Sonia Luque, Isabel García-Luque, Antonio Oliver, Jaime Esteban, Jaime Lora-Tamayo
{"title":"Efficacy and safety of colistin plus beta-lactams for bone and joint infection caused by fluoroquinolone-resistant gram-negative bacilli: a prospective multicenter study.","authors":"Mikel Mancheño-Losa, Oscar Murillo, Eva Benavent, Luisa Sorlí, Melchor Riera, Javier Cobo, Natividad Benito, Laura Morata, Alba Ribera, Beatriz Sobrino, Marta Fernández-Sampedro, Elena Múñez, Alberto Bahamonde, José María Barbero, Mª Dolores Del Toro, Jenifer Villa, Raül Rigo-Bonnin, Sonia Luque, Isabel García-Luque, Antonio Oliver, Jaime Esteban, Jaime Lora-Tamayo","doi":"10.1007/s15010-024-02379-7","DOIUrl":"https://doi.org/10.1007/s15010-024-02379-7","url":null,"abstract":"<p><strong>Objectives: </strong>The prognosis of bone and joint infections (BJI) caused by Gram-negative bacilli (GNB) worsens significantly in the face of fluoroquinolone-resistance. In this setting, scarce pre-clinical and clinical reports suggest that intravenous beta-lactams plus colistin may improve outcome. Our aim was to assess the efficacy and safety of this treatment in a well-characterized prospective cohort.</p><p><strong>Methods: </strong>Observational, prospective, non-comparative, multicenter (14 hospitals) study of adults with BJI caused by fluoroquinolone-resistant GNB treated with surgery and intravenous beta-lactams plus colistin for ≥ 21 days. The primary endpoint was the cure rate.</p><p><strong>Results: </strong>Of the 44 cases included (median age 72 years [IQR 50-81], 22 [50%] women), 32 (73%) had an orthopedic device-related infection, including 17 (39%) prosthetic joints. Enterobacterales were responsible for 27 (61%) episodes, and Pseudomonas spp for 17 (39%), with an overall rate of MDR/XDR GNB infections of 27/44 (61%). Patients were treated with colistin plus intravenous beta-lactam for 28 days (IQR 22-37), followed by intravenous beta-lactam alone for 19 days (IQR 5-35). The cure rate (intention-to-treat analysis; median follow-up = 24 months, IQR 19-30) was 82% (95% CI 68%-90%) and particularly, 80% (95% CI 55%-93%) among patients managed with implant retention. Adverse events (AEs) leading to antimicrobial withdrawal occurred in 10 (23%) cases, all of which were reversible. Colistin AEs were associated with higher plasma drug concentrations (2.8 mg/L vs. 0.9 mg/L, p = 0.0001).</p><p><strong>Conclusions: </strong>Combination therapy with intravenous beta-lactams plus colistin is an effective regimen for BJI caused by fluoroquinolone-resistant GNB. AEs were reversible and potentially preventable by close therapeutic drug monitoring.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153934","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-08DOI: 10.1007/s15010-024-02380-0
Florens Lohrmann, Androulla Efstratiou, Uffe B Skov Sørensen, Roberta Creti, Antoaneta Decheva, Pavla Křížová, Jana Kozáková, Javier Rodriguez-Granger, Manuel De La Rosa Fraile, Immaculada Margarit, Daniela Rinaudo, Domenico Maione, John Telford, Graziella Orefici, Mogens Kilian, Baharak Afshar, Pierrette Melin, Reinhard Berner, Markus Hufnagel, Mirjam Kunze
{"title":"Maternal Streptococcus agalactiae colonization in Europe: data from the multi-center DEVANI study.","authors":"Florens Lohrmann, Androulla Efstratiou, Uffe B Skov Sørensen, Roberta Creti, Antoaneta Decheva, Pavla Křížová, Jana Kozáková, Javier Rodriguez-Granger, Manuel De La Rosa Fraile, Immaculada Margarit, Daniela Rinaudo, Domenico Maione, John Telford, Graziella Orefici, Mogens Kilian, Baharak Afshar, Pierrette Melin, Reinhard Berner, Markus Hufnagel, Mirjam Kunze","doi":"10.1007/s15010-024-02380-0","DOIUrl":"https://doi.org/10.1007/s15010-024-02380-0","url":null,"abstract":"<p><strong>Introduction: </strong>Despite national guidelines and use of intrapartum antibiotic prophylaxis (IAP), Streptococcus agalactiae (group B streptococci (GBS)) is still a leading cause of morbidity and mortality in newborns in Europe and the United States. The European DEVANI (Design of a Vaccine Against Neonatal Infections) program assessed the neonatal GBS infection burden in Europe, the clinical characteristics of colonized women and microbiological data of GBS strains in colonized women and their infants with early-onset disease (EOD).</p><p><strong>Methods: </strong>Overall, 1083 pregnant women with a GBS-positive culture result from eight European countries were included in the study. Clinical obstetrical information was collected by a standardized questionnaire. GBS strains were characterized by serological and molecular methods.</p><p><strong>Results: </strong>Among GBS carriers included in this study after testing positive for GBS by vaginal or recto-vaginal sampling, 13.4% had at least one additional obstetrical risk factor for EOD. The five most common capsular types (i.e., Ia, Ib, II, III and V) comprised ~ 93% of GBS carried. Of the colonized women, 77.8% received any IAP, and in 49.5% the IAP was considered appropriate. In our cohort, nine neonates presented with GBS early-onset disease (EOD) with significant regional heterogeneity.</p><p><strong>Conclusions: </strong>Screening methods and IAP rates need to be harmonized across Europe in order to reduce the rates of EOD. The epidemiological data from eight different European countries provides important information for the development of a successful GBS vaccine.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142153936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-06DOI: 10.1007/s15010-024-02388-6
Svea Genseke, Mirjeta Berisha, Aljoscha Teerstegen, Björn Meyer, Achim J Kaasch, Jacqueline Färber, Enrico Schalk, Andreas E Zautner, Torben Esser, Sascha Kahlfuß
{"title":"Lautropia mirabilis sepsis in immunodeficiency: first report and genomic features.","authors":"Svea Genseke, Mirjeta Berisha, Aljoscha Teerstegen, Björn Meyer, Achim J Kaasch, Jacqueline Färber, Enrico Schalk, Andreas E Zautner, Torben Esser, Sascha Kahlfuß","doi":"10.1007/s15010-024-02388-6","DOIUrl":"https://doi.org/10.1007/s15010-024-02388-6","url":null,"abstract":"<p><strong>Purpose: </strong>Lautropia mirabilis is a Gram-negative, facultative anaerobic coccus, which has been detected mainly in respiratory sites of immunodeficient patients suffering from HIV or cystic fibrosis. To date, knowledge about the pathogenicity of L. mirabilis is spare due to the small numbers of documented cases.</p><p><strong>Methods: </strong>We present a literature review and report the case of a 39-year-old female diagnosed with common variable immunodeficiency (CVID) with IgG and IgA deficiency suffering from a sepsis with L. mirabilis. As no fully closed L. mirabilis genome besides the type strain was available to date, we additionally performed complete genome sequencing of L. mirabilis.</p><p><strong>Results: </strong>The patient was admitted to our hospital with recurrent episodes of fever. Here, we detected L. mirabilis in two different blood cultures. The bacterium was tested susceptible to and treated with meropenem. As the origin of L. mirabilis sepsis, we observed an active periodontitis likely due to impaired IgA levels and mucosal insufficiency as a consequence of CVID. Whole genome sequencing of L. mirabilis revealed several genes important for host cell invasion and intracellular survival of the pathogen.</p><p><strong>Conclusions: </strong>Our case highlights the importance of L. mirabilis in immunocompromised patients also in other compartments than the respiratory tract.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-06DOI: 10.1007/s15010-024-02386-8
Simon Haunhorst, Diana Dudziak, Carmen Scheibenbogen, Martina Seifert, Franziska Sotzny, Carsten Finke, Uta Behrends, Konrad Aden, Stefan Schreiber, Dirk Brockmann, Paul Burggraf, Wilhelm Bloch, Claudia Ellert, Anuradha Ramoji, Juergen Popp, Philipp Reuken, Martin Walter, Andreas Stallmach, Christian Puta
{"title":"Towards an understanding of physical activity-induced post-exertional malaise: Insights into microvascular alterations and immunometabolic interactions in post-COVID condition and myalgic encephalomyelitis/chronic fatigue syndrome.","authors":"Simon Haunhorst, Diana Dudziak, Carmen Scheibenbogen, Martina Seifert, Franziska Sotzny, Carsten Finke, Uta Behrends, Konrad Aden, Stefan Schreiber, Dirk Brockmann, Paul Burggraf, Wilhelm Bloch, Claudia Ellert, Anuradha Ramoji, Juergen Popp, Philipp Reuken, Martin Walter, Andreas Stallmach, Christian Puta","doi":"10.1007/s15010-024-02386-8","DOIUrl":"https://doi.org/10.1007/s15010-024-02386-8","url":null,"abstract":"<p><strong>Background: </strong>A considerable number of patients who contracted SARS-CoV-2 are affected by persistent multi-systemic symptoms, referred to as Post-COVID Condition (PCC). Post-exertional malaise (PEM) has been recognized as one of the most frequent manifestations of PCC and is a diagnostic criterion of myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). Yet, its underlying pathomechanisms remain poorly elucidated.</p><p><strong>Purpose and methods: </strong>In this review, we describe current evidence indicating that key pathophysiological features of PCC and ME/CFS are involved in physical activity-induced PEM.</p><p><strong>Results: </strong>Upon physical activity, affected patients exhibit a reduced systemic oxygen extraction and oxidative phosphorylation capacity. Accumulating evidence suggests that these are mediated by dysfunctions in mitochondrial capacities and microcirculation that are maintained by latent immune activation, conjointly impairing peripheral bioenergetics. Aggravating deficits in tissue perfusion and oxygen utilization during activities cause exertional intolerance that are frequently accompanied by tachycardia, dyspnea, early cessation of activity and elicit downstream metabolic effects. The accumulation of molecules such as lactate, reactive oxygen species or prostaglandins might trigger local and systemic immune activation. Subsequent intensification of bioenergetic inflexibilities, muscular ionic disturbances and modulation of central nervous system functions can lead to an exacerbation of existing pathologies and symptoms.</p>","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142139976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
InfectionPub Date : 2024-09-02DOI: 10.1007/s15010-024-02383-x
Colya N Englisch, Tim Berger, Sören L Becker, Berthold Seitz
{"title":"Corneal snowflake - a case of infectious crystalline keratopathy after penetrating keratoplasty.","authors":"Colya N Englisch, Tim Berger, Sören L Becker, Berthold Seitz","doi":"10.1007/s15010-024-02383-x","DOIUrl":"https://doi.org/10.1007/s15010-024-02383-x","url":null,"abstract":"","PeriodicalId":13600,"journal":{"name":"Infection","volume":" ","pages":""},"PeriodicalIF":5.4,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142106996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}