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1.
Access Microbiol ; 6(7)2024.
Article de Anglais | MEDLINE | ID: mdl-39130737

RÉSUMÉ

The Caliciviridae family, comprising positive-sense RNA viruses, is characterised by its non-enveloped, small virions, broad host range, and notable tendency for host switching. These viruses are primarily associated with gastroenteric disease, though they can lead to haemorrhagic or respiratory infections. Our study employed a metagenomics analysis of faecal samples from stoats (Mustela erminea), identifying two novel calicivirus species, named stoat vesivirus and stoat valovirus. Stoat vesivirus was identified in three samples (ST008, ST006, ST004), exhibiting a genome wide nucleotide identity of approximately 92 %. The complete coding sequences of these samples were 8471 (ST004) and 8322 (ST006) nucleotides in length, respectively. Each comprised three open reading frames (ORF), closely resembling the Vesivirus mink calicivirus (China/2/2016), with 70-72 % similarity in ORF1, 61-62 % in ORF2 and 71 % in ORF3. Phylogenetic analysis robustly supported stoat vesivirus as belonging within the Vesivirus genus. The second calivicirus (stoat valovirus), detected solely in sample ST008, was 6527 nucleotides in length and with complete coding sequences present. It shared highest similarity with St-Valérien swine virus and marmot norovirus HT16, showing 39.5 and 38.8 % protein identity with ORF1 and 43.3 and 42.9 % for VP1. Stoat valovirus is borderline for meeting the ICTV criteria for a new genus, demonstrating 60 % divergence in ORF1 compared to the other valovirus', however it clusters basally within the Valovirus genus, supporting leaving it included in this genus.

2.
J Gen Virol ; 104(12)2023 12.
Article de Anglais | MEDLINE | ID: mdl-38059490

RÉSUMÉ

Repeat spillover of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) into new hosts has highlighted the critical role of cross-species transmission of coronaviruses and establishment of new reservoirs of virus in pandemic and epizootic spread of coronaviruses. Species particularly susceptible to SARS-CoV-2 spillover include Mustelidae (mink, ferrets and related animals), cricetid rodents (hamsters and related animals), felids (domestic cats and related animals) and white-tailed deer. These predispositions led us to screen British wildlife with sarbecovirus-specific quantitative PCR and pan coronavirus PCR assays for SARS-CoV-2 using samples collected during the human pandemic to establish if widespread spillover was occurring. Fourteen wildlife species (n=402) were tested, including: two red foxes (Vulpes vulpes), 101 badgers (Meles meles), two wild American mink (Neogale vison), 41 pine marten (Martes martes), two weasels (Mustela nivalis), seven stoats (Mustela erminea), 108 water voles (Arvicola amphibius), 39 bank voles (Myodes glareolous), 10 field voles (Microtus agrestis), 15 wood mice (Apodemus sylvaticus), one common shrew (Sorex aranaeus), two pygmy shrews (Sorex minutus), two hedgehogs (Erinaceus europaeus) and 75 Eurasian otters (Lutra lutra). No cases of SARS-CoV-2 were detected in any animals, but a novel minacovirus related to mink and ferret alphacoronaviruses was detected in stoats recently introduced to the Orkney Islands. This group of viruses is of interest due to pathogenicity in ferrets. The impact of this virus on the health of stoat populations remains to be established.


Sujet(s)
Alphacoronavirus , COVID-19 , Cervidae , Loutres , Virus , Animaux , Humains , Chats , Souris , Animaux sauvages , Furets , Visons , SARS-CoV-2/génétique , COVID-19/médecine vétérinaire , Arvicolinae
3.
Vaccines (Basel) ; 11(7)2023 Jun 27.
Article de Anglais | MEDLINE | ID: mdl-37514980

RÉSUMÉ

This study presents a case of SIRVA-induced adhesive capsulitis and the subsequent physiotherapy intervention. It details the patient's journey using CARE guidelines. The main symptoms included persistent pain and a reduced range of motion for flexion, abduction, and internal and external rotation of the shoulder. Interventions included active and passive mobilisation via capsular stretching, and home exercise programs. At more than two years post-injury, the patient has ongoing pain, restricted shoulder movement, and disability. This highlights the importance of healthcare practitioners' knowledge of SIRVA. Vaccinating practitioners should be aware of the mechanism of injury of SIRVA for preventing such injuries. First-contact practitioners should be aware of SIRVA-induced conditions to ensure timely and correct diagnosis and management of SIRVA-induced conditions.

4.
Parasitology ; 150(10): 866-882, 2023 09.
Article de Anglais | MEDLINE | ID: mdl-37519240

RÉSUMÉ

Many organisms live in fragmented populations, which has profound consequences on the dynamics of associated parasites. Metapopulation theory offers a canonical framework for predicting the effects of fragmentation on spatiotemporal host­parasite dynamics. However, empirical studies of parasites in classical metapopulations remain rare, particularly for vector-borne parasites. Here, we quantify spatiotemporal patterns and possible drivers of infection probability for several ectoparasites (fleas, Ixodes trianguliceps and Ixodes ricinus) and vector-borne microparasites (Babesia microti, Bartonella spp., Hepatozoon spp.) in a classically functioning metapopulation of water vole hosts. Results suggest that the relative importance of vector or host dynamics on microparasite infection probabilities is related to parasite life-histories. Bartonella, a microparasite with a fast life-history, was positively associated with both host and vector abundances at several spatial and temporal scales. In contrast, B. microti, a tick-borne parasite with a slow life-history, was only associated with vector dynamics. Further, we provide evidence that life-history shaped parasite dynamics, including occupancy and colonization rates, in the metapopulation. Lastly, our findings were consistent with the hypothesis that landscape connectivity was determined by distance-based dispersal of the focal hosts. We provide essential empirical evidence that contributes to the development of a comprehensive theory of metapopulation processes of vector-borne parasites.


Sujet(s)
Bartonella , Infestations par les puces , Ixodes , Siphonaptera , Animaux
5.
Int J Health Plann Manage ; 38(3): 599-627, 2023 May.
Article de Anglais | MEDLINE | ID: mdl-36576087

RÉSUMÉ

BACKGROUND: Strike action carried out by healthcare workers raises a range of ethical issues. Most fundamentally, as a strike is designed to disrupt, it has the potential to impact patient outcomes and healthcare delivery. This paper synthesises and analyses the empirical literature that details the impact of strike action on healthcare delivery. METHODS: A systematic scoping review was utilised to examine the extent, range and nature of research activity. Embase, Medline, CINAHL, Bioethicsline, EconLit and Web of Science were searched, yielding 5644 results. Papers were included if they examined the impact that strike action had on healthcare delivery (i.e., admissions, presentations, waiting time). After screening, 43 papers met inclusion criteria. RESULTS: Nineteen studies explored presentations to emergency or admissions to hospital. Both dropped dramatically when comparing non-strike to strike periods. Ten studies examined length of stay in hospital and waiting times. No clear relationship was found with strike action, with some studies showing that wait times decreased. Nine studies examined the impact of strike action in facilities that were not on strike, but were impacted by nearby strike action along with the impact that strike action had on treatment seeking. Hospitals dealing with these upstream impacts often saw increase in presentations at hospitals, but results relates to treatment seeking during strike action were mixed. CONCLUSION: Strike action can have a substantial impact on the delivery of healthcare, but this impact is not felt uniformly across services. While many services are disrupted, a number are not, with several studies reporting increased efficiency.


Sujet(s)
Prestations des soins de santé , Personnel de santé , Humains , Hôpitaux , Hospitalisation
6.
Vaccines (Basel) ; 10(12)2022 Nov 23.
Article de Anglais | MEDLINE | ID: mdl-36560401

RÉSUMÉ

Background: Vaccine pharmacovigilance is at the forefront of the public eye. Shoulder Injuries Related to Vaccine Administration (SIRVA) is a poorly understood Adverse Event Following Immunisation, with iatrogenic origins. Criteria for medicolegal diagnosis of SIRVA is conflicting, current literature and educational materials are lacking, and healthcare practitioner knowledge of the condition is unknown. Methods: A cross-sectional, convenience sampled survey, utilising a validated online questionnaire assessed practitioner knowledge of SIRVA, safe injecting, and upper limb anatomy, and preferred definition for SIRVA. Results: Mean scores were moderate for safe injecting knowledge (69%), and poor for knowledge of anatomy (42%) and SIRVA (55%). Non-immunising healthcare practitioners scored significantly (p = 0.01, and < 0.05, respectively) higher than immunising practitioners for anatomy (2.213 ± 1.52 vs. 3.12 ± 1.50), and safe injecting knowledge (6.70 ± 1.34 vs. 7.14 ± 1.27). Only 52% of authorised vaccinators accurately selected a 40 × 20 mm area recommended for safe injecting. Majority (91.7%) of respondents thought nerve injuries should be included in the diagnostic criteria for SIRVA. Discussion and conclusions: Greater education and awareness of SIRVA is needed in all healthcare disciplines. Consensus regarding SIRVA definition is paramount for accurate reporting and improved future understanding of all aspects of SIRVA.

7.
Explor Res Clin Soc Pharm ; 8: 100183, 2022 Dec.
Article de Anglais | MEDLINE | ID: mdl-36268129

RÉSUMÉ

Background: Shoulder injury related to vaccine administration (SIRVA) has been recognised as the compensable term for any shoulder injury that may result from an improper vaccination technique since 2017, however, its incidence and impact remain poorly understood. Objectives: To examine knowledge of SIRVA through reported cases, determine SIRVA incidence related to COVID-19 vaccinations, and investigate recovery rates. Methods: Six pharmacovigilance agencies in the United States of America (USA), Canada, United Kingdom, European Union, Australia, and New Zealand were systematically search to identify all reported cases of SIRVA between January 2017 to July 2021. Primary outcome measures were SIRVA case reports. Secondary outcome measures included recovery status as well as vaccine received, age, and sex. SIRVA-related outcome measures were retrieved between July 18th and July 22nd 2021, with UK data received via personal correspondence. Results: Retrospective analysis yielded 505 SIRVA cases since 2017, with 330 (65%) of cases reported from January to July 2021. Sub-analysis, using COVID-19 data of 189 SIRVA cases from 891,906,986 vaccinations, estimated incidence to be 2 per 10 million. 32 cases (7%) had recovered from symptoms at the time of reporting, with 311 (62%) reported as 'not recovered', and 162 cases (32%) 'unknown'. Females represented 75% of reported cases. Conclusion: SIRVA case report numbers and incidence from COVID-19 data, compared with prior evidence, raises questions around health practitioner knowledge and reporting accuracy of SIRVA. Recovery rates are poorly understood. A global consensus definition of SIRVA and more transparent and routine reporting is required. The disproportionate representation of females is of concern with no known reasons for this disparity. Further research is needed on SIRVA knowledge in healthcare practitioners, reporting rates, incidence, management, and long-term outcomes for those impacted. Pharmacist vaccinators should be aware of their role in preventing SIRVA and be active in its detection.

8.
Eur J Clin Microbiol Infect Dis ; 38(6): 1171-1178, 2019 Jun.
Article de Anglais | MEDLINE | ID: mdl-30859358

RÉSUMÉ

Faster respiratory pathogen detection and antibiotic resistance identification are important in critical care due to the severity of illness, significant prior antibiotic exposure and infection control implications. Our objective was to compare the performance of the commercial Unyvero P55 Pneumonia Cartridge (Curetis AG) with routine bacterial culture methods and in-house bacterial multiplex real-time PCR assays. Seventy-four bronchoalveolar lavage specimens from patients admitted to a Scottish intensive care unit (ICU) over a 33-month period were tested prospectively by routine culture and viral PCR and retrospectively by Unyvero P55 and in-house bacterial PCR. Sensitivity/specificity was 56.9%/58.5% and 63.2%/54.8% for the Unyvero P55 and in-house bacterial PCR panels respectively; sensitivity for in-panel targets was 63.5 and 83.7% respectively. Additional organisms were detected by Unyvero P55 and in-house bacterial PCR panels in 16.2% specimens. Antibiotics were changed on the basis of routine test results in 48.3% cases; of these, true-positive or true-negative results would have been obtained earlier by Unyvero P55 or in-house bacterial PCR panel in 15 (53.6%) and 17 (60.7%) cases respectively. However, a false-negative molecular test result may have been acted upon in six (21.4%) cases with either assay. Sensitivity/specificity of Unyvero P55 antibiotic resistance detection was 18.8%/94.9% respectively. Molecular testing identified a number of respiratory pathogens in this patient cohort that were not grown in culture, but resistance detection was not a reliable tool for faster antibiotic modification. In their current set-up, molecular tests may only have benefit as additional tests in the ICU pneumonia setting.


Sujet(s)
Bactéries/isolement et purification , Techniques bactériologiques/normes , Liquide de lavage bronchoalvéolaire/microbiologie , Résistance microbienne aux médicaments/génétique , Réaction de polymérisation en chaine multiplex/normes , Pneumopathie infectieuse/diagnostic , Adulte , Sujet âgé , Antibactériens/pharmacologie , Antibactériens/usage thérapeutique , Bactéries/effets des médicaments et des substances chimiques , Bactéries/génétique , Tests diagnostiques courants , Femelle , Humains , Unités de soins intensifs , Mâle , Adulte d'âge moyen , Pneumopathie infectieuse/traitement médicamenteux , Pneumopathie infectieuse/microbiologie , Études rétrospectives , Sensibilité et spécificité
9.
J Clin Virol ; 105: 72-76, 2018 08.
Article de Anglais | MEDLINE | ID: mdl-29908520

RÉSUMÉ

BACKGROUND: Norovirus is a leading cause of infectious gastroenteritis, characterized by outbreaks of diarrhoea and vomiting in closed settings. Nucleic acid amplification tests allow rapid and sensitive laboratory diagnosis of norovirus, with a number of commercial platforms now available. OBJECTIVES: Evaluate the performance of the Becton Dickinson BD-MAX™System, Cepheid Xpert® Norovirus Assay, and Luminex xTAG® Gastrointestinal Pathogen Panel (GPP) for norovirus detection in stool. Assess the performance of the Xpert® Norovirus Assay and BD-MAX™ in vomit samples. STUDY DESIGN: 163 diarrhoeal stool samples were tested on four diagnostic systems (laboratory-defined real time RT-PCR (assigned as gold standard), BD MAX™, Xpert® Norovirus Assay, and xTAG® GPP). A further 70 vomit samples were tested on the Xpert and BD MAX platforms. RESULTS: In stool, sensitivity and specificity of the BD-MAX™ was 96.8% and 100%, for Xpert® Norovirus Assay was 91.9% and 100%, and for xTAG® GPP was 79.0% and 87.1%. In vomit samples positive and negative percent agreement was 95.6% and 92.0%, between the BD-MAX™ and Xpert® Norovirus. CONCLUSIONS: The BD-MAX™ System with user defined settings and the Xpert® Norovirus Assay showed acceptable sensitivity and specificity for detection of norovirus from stool and vomit. The xTAG GPP assay was less reliable for norovirus detection but can detect a number of other clinically useful enteropathogens. Clinical laboratories must consider skill mix, budget, and sample throughput to determine the best fit for their service.


Sujet(s)
Fèces/virologie , Gastroentérite/virologie , Techniques de diagnostic moléculaire/méthodes , Norovirus/isolement et purification , Vomissement/virologie , Sujet âgé , Sujet âgé de 80 ans ou plus , Femelle , Humains , Mâle , Adulte d'âge moyen , Techniques de diagnostic moléculaire/instrumentation , Réaction de polymérisation en chaine multiplex/instrumentation , Réaction de polymérisation en chaine multiplex/méthodes , Norovirus/génétique , Trousses de réactifs pour diagnostic , Sensibilité et spécificité
10.
Mult Scler ; 23(8): 1063-1071, 2017 Jul.
Article de Anglais | MEDLINE | ID: mdl-27682228

RÉSUMÉ

BACKGROUND: Since 1959, multiple sclerosis (MS) prevalence has been estimated for the east coast Australian city of Newcastle. Previous surveys, conducted in 1988 and 2003, have described an increase in the prevalence and incidence of MS. OBJECTIVES: In this study, we evaluated whether these trends continue and provide 50 years of MS epidemiological follow-up for this southern hemisphere city. METHODS: Expressed per 100,000 people, prevalence of MS in Newcastle was calculated for those with a confirmed diagnosis of MS on 9 August 2011 and incidence based on the number of cases with MS diagnosis made during the preceding decade. Data were age-standardised to the total Australian population. Statistical comparisons were undertaken using Poisson regression analysis. RESULTS: In 2011, the estimate of MS prevalence was 124.2, with female-to-male ratio reaching 3.1, a 53% increase in female predominance since 1996. MS incidence increased to 6.7, with a significantly higher proportion of new female cases since the previous survey. CONCLUSION: Prevalence of MS in Newcastle has risen linearly and is contributed to by a substantial increase in new cases over the preceding decade. Female predominance of MS cases continues to increase with a new diagnosis three times more likely in women.


Sujet(s)
Répartition par âge , Sclérose en plaques/épidémiologie , Répartition par sexe , Adolescent , Adulte , Sujet âgé , Sujet âgé de 80 ans ou plus , Australie/épidémiologie , Enfant , Enfant d'âge préscolaire , Femelle , Humains , Incidence , Nourrisson , Nouveau-né , Mâle , Adulte d'âge moyen , Prévalence , Jeune adulte
11.
J Exp Psychol Hum Percept Perform ; 42(2): 257-65, 2016 Feb.
Article de Anglais | MEDLINE | ID: mdl-26389615

RÉSUMÉ

Motor learning depends upon plasticity in neural networks involved in the planning and execution of movement. Physical practice (PP) is the primary means of motor learning, but it can be augmented with nonphysical forms of practice including motor imagery (MI)-the mental rehearsal of movement. It is unknown if MI alone, without prior PP of a movement, can produce robust learning. Here the authors used an implicit sequence learning task to explore motor learning via MI alone or PP. Participants underwent implicit sequence learning training via MI (n = 31) or PP (n = 33). Posttraining reaction time was faster for implicit versus random sequences for both the MI group (M = 583 ± 84 ms; 632 ± 86 ms, d = 0.59) and PP group (M = 532 ± 73 ms; 589 ± 70 ms, d = 0.80), demonstrating that MI without PP facilitated skill acquisition. Relative to MI alone, PP led to reduced reaction time for both random (d = 0.65) and implicit sequences (d = 0.55) consistent with a nonspecific motor benefit favoring PP over MI. These results have broad implication for theories of MI and support the use of MI as a form of practice to acquire implicit motor skills. (PsycINFO Database Record


Sujet(s)
Imagination/physiologie , Apprentissage/physiologie , Activité motrice/physiologie , Aptitudes motrices/physiologie , , Adulte , Femelle , Humains , Mâle , Jeune adulte
12.
J Clin Microbiol ; 53(11): 3630-2, 2015 Nov.
Article de Anglais | MEDLINE | ID: mdl-26292311

RÉSUMÉ

We evaluated the performance of the BD Max StaphSR assay for the direct detection of Staphylococcus aureus from blood culture medium. In a two-center trial, 155 blood cultures from the BD Bactec FX system and 212 from the bioMérieux BacT/Alert system were tested; 170 bottles yielded S. aureus, and all were identified correctly by the BD Max StaphSR assay. The assay required approximately 2.5 h, thus allowing rapid identification of blood cultures flagged positive.


Sujet(s)
Bactériémie/diagnostic , Staphylococcus aureus résistant à la méticilline/génétique , Trousses de réactifs pour diagnostic , Infections à staphylocoques/diagnostic , Bactériémie/microbiologie , Protéines bactériennes/génétique , Techniques bactériologiques/méthodes , Humains , Staphylococcus aureus résistant à la méticilline/classification , Micrococcal nuclease/génétique , Protéines de liaison aux pénicillines/génétique , Réaction de polymérisation en chaine en temps réel , Sensibilité et spécificité , Infections à staphylocoques/microbiologie
13.
Nurse Educ Pract ; 15(2): 97-102, 2015 Mar.
Article de Anglais | MEDLINE | ID: mdl-25481982

RÉSUMÉ

Nurse educators internationally are challenged with finding a sufficient number of suitable practice learning experiences for student nurses. This paper reports on a study which aimed to evaluate the utilisation of specialised and highly technical environments ("new" environments) as first practice learning experiences for adult nursing students in the UK. A survey was conducted on 158 first year student nurses who were allocated to either "new" or "old" (those that have been traditionally used) environments. Data analysis was conducted using Mann-Whitney U test and exploratory factor analysis was performed. Results have demonstrated that all environments afford novice nurses the opportunity to observe or practice the essential skills of nursing. In addition, the "new" environments have revealed greater opportunity to observe and practice aspects of practice related to governance of care. This paper concludes that a nursing curriculum which makes clear association between the essential nature of nursing and practice based learning outcomes will help the student to appreciate contemporary nursing practice and to link nursing theory with practice. Further research is required to explain the observation that aspects of practice related to governance are more visible within highly technical areas of practice.


Sujet(s)
Programme d'études , Enseignement infirmier , Théorie des soins infirmiers , Apprentissage par problèmes/méthodes , Prestations des soins de santé , Enseignement infirmier/normes , Humains , Élève infirmier/psychologie , Enquêtes et questionnaires , Royaume-Uni
14.
Pacing Clin Electrophysiol ; 30(6): 725-9, 2007 Jun.
Article de Anglais | MEDLINE | ID: mdl-17547603

RÉSUMÉ

BACKGROUND: To determine the sensitivity and specificity, rate of compliance, and predictors of failure of telephone transmission of pacemaker function in a pediatric population. METHODS: A total of 2,638 pacemaker transmission records were reviewed retrospectively. Standard calculations of sensitivity, specificity, and positive and negative predictive values were performed. Longitudinal data analysis was used to detect factors influencing the effectiveness of transtelephonic monitoring. The proportion of missed transmissions was calculated, thus enabling assessment of compliance. Logistic regression was performed to determine predictors of poor compliance. RESULTS: Telephone transmission of pacemaker function, as a diagnostic tool, had a sensitivity of 94.8%, specificity of 99.2%, positive predictive value of 82.1%, and negative predictive value of 99.9%. Longitudinal analysis failed to show any significant predictors of transmission failure. Compliance with a prescribed transmission reached 84.5% in our patient population. Logistic regression analysis failed to identify any predictors of noncompliance. CONCLUSION: Values for sensitivity and specificity indicate that telephone transmission is a useful diagnostic tool for assessing pacemaker function at a distance. Negative predictive value is 99.9%, indicating that normal telephone transmissions are very reassuring of normal pacemaker function. Telephone transmission is equally successful in all age groups, genders, distances from a tertiary referral center, underlying diagnoses, pacing modes, and pacemaker models. Compliance with telephone transmission follow-up was higher in our population than in previous studies.


Sujet(s)
Surveillance électronique ambulatoire/méthodes , Pacemaker , Observance par le patient , Téléphone , Adolescent , Adulte , Enfant , Enfant d'âge préscolaire , Études de cohortes , Femelle , Humains , Nourrisson , Nouveau-né , Mâle , Études rétrospectives , Sensibilité et spécificité
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