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1.
JAMA Health Forum ; 4(6): e231235, 2023 Jun 02.
Article in English | MEDLINE | ID: covidwho-20236581

ABSTRACT

Importance: In March 2020, the Substance Abuse and Mental Health Services Administration (SAMHSA) permitted states to relax restrictions on take-home methadone doses for treatment-adherent patients to minimize COVID-19 exposures. Objective: To assess whether the methadone take-home policy change was associated with drug overdose deaths among different racial, ethnic, and sex groups. Design, Setting, and Participants: Interrupted time series analysis from January 1, 2018, to June 30, 2022. Data analysis was conducted from February 18, 2023, to February 28, 2023. In this population-based cohort study of drug overdose mortality including 14 529 methadone-involved deaths, monthly counts of methadone-involved drug overdose deaths were obtained for 6 demographic groups: Hispanic men and women, non-Hispanic Black men and women, and non-Hispanic White men and women. Exposure: On March 16, 2020, in response to the first wave of the COVID-19 pandemic, SAMHSA issued an exemption to the states that permitted up to 28 days of take-home methadone for stable patients and 14 days for less stable patients. Main Outcome Measures: Monthly methadone-involved overdose deaths. Results: From January 1, 2018, to June 30, 2022 (54 months), there were 14 529 methadone-involved deaths in the United States; 14 112 (97.1%) occurred in the study's 6 demographic groups (Black men, 1234; Black women, 754; Hispanic men, 1061; Hispanic women, 520; White men, 5991; and White women, 4552). Among Black men, there was a decrease in monthly methadone deaths associated with the March 2020 policy change (change of slope from the preintervention period, -0.55 [95% CI, -0.95 to -0.15]). Hispanic men also experienced a decrease in monthly methadone deaths associated with the policy change (-0.42 [95% CI, -0.68 to -0.17]). Among Black women, Hispanic women, White men, and White women, the policy change was not associated with a change in monthly methadone deaths (Black women, -0.27 [95% CI, -1.13 to 0.59]; Hispanic women, 0.29 [95% CI, -0.46 to 1.04]; White men, -0.08 [95% CI, -1.05 to 0.88]; and White women, -0.43 [95% CI, -1.26 to 0.40]). Conclusions and Relevance: In this interrupted time series study of monthly methadone-involved overdose deaths, the take-home policy may have helped reduce deaths for Black and Hispanic men but had no association with deaths of Black or Hispanic women or White men or women.


Subject(s)
COVID-19 , Drug Overdose , Opiate Overdose , Humans , Male , Female , United States/epidemiology , Methadone , Sex Characteristics , Pandemics , Cohort Studies , Anti-Inflammatory Agents, Non-Steroidal
2.
Lancet Glob Health ; 11(4): e546-e555, 2023 04.
Article in English | MEDLINE | ID: covidwho-2255290

ABSTRACT

BACKGROUND: Tuberculosis is a leading infectious cause of death worldwide. Novel vaccines will be required to reach global targets and reverse setbacks resulting from the COVID-19 pandemic. We estimated the impact of novel tuberculosis vaccines in low-income and middle-income countries (LMICs) in several delivery scenarios. METHODS: We calibrated a tuberculosis model to 105 LMICs (accounting for 93% of global incidence). Vaccine scenarios were implemented as the base-case (routine vaccination of those aged 9 years and one-off vaccination for those aged 10 years and older, with country-specific introduction between 2028 and 2047, and 5-year scale-up to target coverage); accelerated scale-up similar to the base-case, but with all countries introducing vaccines in 2025, with instant scale-up; and routine-only (similar to the base-case, but including routine vaccination only). Vaccines were assumed to protect against disease for 10 years, with 50% efficacy. FINDINGS: The base-case scenario would prevent 44·0 million (95% uncertainty range 37·2-51·6) tuberculosis cases and 5·0 million (4·6-5·4) tuberculosis deaths before 2050, compared with equivalent estimates of cases and deaths that would be predicted to occur before 2050 with no new vaccine introduction (the baseline scenario). The accelerated scale-up scenario would prevent 65·5 million (55·6-76·0) cases and 7·9 million (7·3-8·5) deaths before 2050, relative to baseline. The routine-only scenario would prevent 8·8 million (95% uncertainty range 7·6-10·1) cases and 1·1 million (0·9-1·2) deaths before 2050, relative to baseline. INTERPRETATION: Our results suggest novel tuberculosis vaccines could have substantial impact, which will vary depending on delivery strategy. Including a one-off vaccination campaign will be crucial for rapid impact. Accelerated introduction-at a pace similar to that seen for COVID-19 vaccines-would increase the number of lives saved before 2050 by around 60%. Investment is required to support vaccine development, manufacturing, prompt introduction, and scale-up. FUNDING: WHO (2020/985800-0). TRANSLATIONS: For the French, Spanish, Italian and Dutch translations of the abstract see Supplementary Materials section.


Subject(s)
COVID-19 , Tuberculosis Vaccines , Tuberculosis , Humans , Developing Countries , COVID-19 Vaccines , Pandemics , COVID-19/epidemiology , COVID-19/prevention & control , Tuberculosis/epidemiology , Tuberculosis/prevention & control
3.
JAMA Psychiatry ; 79(8): 833-834, 2022 08 01.
Article in English | MEDLINE | ID: covidwho-2262298
4.
Infect Dis Ther ; 12(2): 367-387, 2023 Feb.
Article in English | MEDLINE | ID: covidwho-2175273

ABSTRACT

Vaccines developed against SARS-CoV-2 have proven to be highly effective in preventing symptomatic infection. Similarly, prior infection with SARS-CoV-2 has been shown to provide substantial protection against reinfection. However, it has become apparent that the protection provided to an individual after either vaccination or infection wanes over time. Waning protection is driven by both waning immunity over time since vaccination or initial infection, and the evolution of new variants of SARS-CoV-2. Both antibody and T/B-cells levels have been investigated as potential correlates of protection post-vaccination or post-infection. The activity of antibodies and T/B-cells provide some potential insight into the underlying causes of waning protection. This review seeks to summarise what is currently known about the waning of protection provided by both vaccination and/or prior infection, as well as the current information on the respective antibody and T/B-cell responses.

5.
BDJ Open ; 8(1): 26, 2022 Sep 06.
Article in English | MEDLINE | ID: covidwho-2008261

ABSTRACT

INTRODUCTION: The COVID-19 pandemic has caused major disruptions in dental care globally, in part due to the potential for contaminated aerosol to be generated by dental activities. This systematic review assesses the literature for changes in aerosol-contamination levels when rotary instruments are used, (1) as distance increases from patient's mouth; (2) as time passes after the procedure; and (3) when using different types of handpieces. METHODS: The review methods and reporting are in line with PRISMA statements. A structured search was conducted over five platforms (September 2021). Studies were assessed independently by two reviewers. To be eligible studies had to assess changes in levels of aerosol contamination over different distances, and time points, with rotary hand instruments. Studies' methodologies and the sensitivity of the contamination-measurement approaches were evaluated. Results are presented descriptively. RESULTS: From 422 papers identified, 23 studies were eligible. All investigated restorative procedures using rotary instruments and one study additionally looked at orthodontic bracket adhesive material removal. The results suggest contamination is significantly reduced over time and distance. However, for almost all studies that investigated these two factors, the sizes of the contaminated particles were not considered, and there were inconclusive findings regarding whether electric-driven handpieces generate lower levels of contaminated particles. CONCLUSION: Aerosol contamination levels reduce as distances, and post-procedure times increase. However, there was sparce and inconsistent evidence on the clearing time and no conclusions could be drawn. High-speed handpieces produce significantly higher levels of contamination than slow-speed ones, and to a lesser extent, micro-motor handpieces. However, when micro-motor handpieces were used with water, the contamination levels rose and were similar to high-speed handpiece contamination levels.

6.
BMJ Open ; 12(8): e058626, 2022 08 01.
Article in English | MEDLINE | ID: covidwho-1968303

ABSTRACT

INTRODUCTION: COVID-19 has tested the resilience of health systems globally and exposed existing strengths and weaknesses. We sought to understand health systems COVID-19 adaptations and decision making in Liberia and Merseyside, UK. METHODS: We used a people-centred approach to carry out qualitative interviews with 24 health decision-makers at national and county level in Liberia and 42 actors at county and hospital level in the UK (Merseyside). We explored health systems' decision-making processes and capacity to adapt and continue essential service delivery in response to COVID-19 in both contexts. RESULTS: Study respondents in Liberia and Merseyside had similar experiences in responding to COVID-19, despite significant differences in health systems context, and there is an opportunity for multidirectional learning between the global south and north. The need for early preparedness; strong community engagement; clear communication within the health system and health service delivery adaptations for essential health services emerged strongly in both settings. We found the Foreign, Commonwealth and Development Office (FCDO) principles to have value as a framework for reviewing health systems changes, across settings, in response to a shock such as a pandemic. In addition to the eight original principles, we expanded to include two additional principles: (1) the need for functional structures and mechanisms for preparation and (2) adaptable governance and leadership structures to facilitate timely decision making and response coordination. We find the use of a people-centred approach also has value to prompt policy-makers to consider the acceptance of service adaptations by patients and health workers, and to continue the provision of 'routine services' for individuals during health systems shocks. CONCLUSION: Our study highlights the importance of a people-centred approach, placing the person at the centre of the health system, and value in applying and adapting the FCDO principles across diverse settings.


Subject(s)
COVID-19 , COVID-19/epidemiology , Government Programs , Humans , Liberia , Qualitative Research , United Kingdom
7.
Eur Respir Rev ; 31(164)2022 Jun 30.
Article in English | MEDLINE | ID: covidwho-1892170

ABSTRACT

Tuberculosis (TB) remains a leading infectious cause of death worldwide and the coronavirus disease 2019 pandemic has negatively impacted the global TB burden of disease indicators. If the targets of TB mortality and incidence reduction set by the international community are to be met, new more effective adult and adolescent TB vaccines are urgently needed. There are several new vaccine candidates at different stages of clinical development. Given the limited funding for vaccine development, it is crucial that trial designs are as efficient as possible. Prevention of infection (POI) approaches offer an attractive opportunity to accelerate new candidate vaccines to advance into large and expensive prevention of disease (POD) efficacy trials. However, POI approaches are limited by imperfect current tools to measure Mycobacterium tuberculosis infection end-points. POD trials need to carefully consider the type and number of microbiological tests that define TB disease and, if efficacy against subclinical (asymptomatic) TB disease is to be tested, POD trials need to explore how best to define and measure this form of TB. Prevention of recurrence trials are an alternative approach to generate proof of concept for efficacy, but optimal timing of vaccination relative to treatment must still be explored. Novel and efficient approaches to efficacy trial design, in addition to an increasing number of candidates entering phase 2-3 trials, would accelerate the long-standing quest for a new TB vaccine.


Subject(s)
Clinical Trials as Topic , Tuberculosis Vaccines , Vaccine Development , Adolescent , Adult , COVID-19/prevention & control , Clinical Trials as Topic/methods , Humans , Mycobacterium tuberculosis , Research Design , Tuberculosis/prevention & control
8.
Frontline Gastroenterology ; 2021.
Article in English | EuropePMC | ID: covidwho-1871601

ABSTRACT

Introduction The COVID-19 pandemic has disrupted training. Gastroenterology higher specialty training is soon to be reduced from 5 years to 4. The British Society of Gastroenterology Trainees Section biennial survey aims to delineate the impact of COVID-19 on training and the opinions on changes to training. Methods An electronic survey allowing for anonymised responses at the point of completion was distributed to all gastroenterology trainees from September to November 2020. Results During the first wave of the COVID-19 pandemic, 71.0% of the respondents stated that more than 50% of their clinical time was mostly within general internal medicine. Trainees reported a significant impact on all aspects of their gastroenterology training due to lost training opportunities and increasing service commitments. During the first wave, 88.5% of the respondents reported no access to endoscopy training lists. Since this time, 66.2% of the respondents stated that their endoscopy training lists had restarted. This has resulted in fewer respondents achieving endoscopy accreditation. The COVID-19 pandemic has caused 42.2% of the respondents to consider extending their training to obtain the skills required to complete training. Furthermore, 10.0% of the respondents reported concerns of a delay to completion of training. The majority of respondents (84.2%) reported that they would not feel ready to be a consultant after 4 years of training. Conclusions Reductions in all aspects of gastroenterology training were reported. This is mirrored in anticipated concerns about completion of training in a shorter training programme as proposed in the new curriculum. Work is now required to ensure training is restored following the pandemic.

9.
PLoS One ; 17(1): e0261853, 2022.
Article in English | MEDLINE | ID: covidwho-1622346

ABSTRACT

Reverse transcription-quantitative polymerase chain reaction (RT-qPCR) is used worldwide to test and trace the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). "Extraction-less" or "direct" real time-reverse transcription polymerase chain reaction (RT-PCR) is a transparent and accessible qualitative method for SARS-CoV-2 detection from nasopharyngeal or oral pharyngeal samples with the potential to generate actionable data more quickly, at a lower cost, and with fewer experimental resources than full RT-qPCR. This study engaged 10 global testing sites, including laboratories currently experiencing testing limitations due to reagent or equipment shortages, in an international interlaboratory ring trial. Participating laboratories were provided a common protocol, common reagents, aliquots of identical pooled clinical samples, and purified nucleic acids and used their existing in-house equipment. We observed 100% concordance across laboratories in the correct identification of all positive and negative samples, with highly similar cycle threshold values. The test also performed well when applied to locally collected patient nasopharyngeal samples, provided the viral transport media did not contain charcoal or guanidine, both of which appeared to potently inhibit the RT-PCR reaction. Our results suggest that direct RT-PCR assay methods can be clearly translated across sites utilizing readily available equipment and expertise and are thus a feasible option for more efficient COVID-19 coronavirus disease testing as demanded by the continuing pandemic.


Subject(s)
COVID-19 Testing/methods , COVID-19/diagnosis , RNA, Viral/genetics , Real-Time Polymerase Chain Reaction/methods , Reverse Transcription/genetics , SARS-CoV-2/genetics , COVID-19/virology , Feasibility Studies , Humans , Nasopharynx/virology , Pandemics/prevention & control , Sensitivity and Specificity , Serologic Tests/methods , Specimen Handling/methods
10.
Gut ; 70(Suppl 4):A20-A21, 2021.
Article in English | ProQuest Central | ID: covidwho-1504621

ABSTRACT

IntroductionThe impact of the COVID-19 pandemic has disrupted training during the initial peak and partial recovery. Gastroenterology higher speciality training (HST) is reaching an inflection point with a reduction from five years to four. The potential compound impact is a source of concern for HSTs. The BSG Trainees Section biennial survey 2020 aimed to delineate the impact of COVID-19 and opinions on changes to training.MethodsAn electronic survey allowing for anonymised responses at the point of completion was distributed to all gastroenterology HSTs over a three month period from September to November 2020.ResultsIn total, 349 trainees completed the survey (response rate of 51% of 687 HSTs) with representation across all regions. 89%(307/344) of responders were full time trainees and 39%(136/349) female. There was a reduction in access to clinics;48.4%(169/349) reported due to general internal medicine (GIM) duties and 26.6% (93/349) due to reduction in available clinics. Reduction in experience in gastroenterology referrals were also mainly limited by GIM commitments (42.4%) (148/349). No endoscopy training occurred for 88.5(170/192)% of trainees at the peak. Recovery of training lists was reported by 67.3(175/260)% of responders in late summer yet 20.6(72/349)% reported training lists were still ‘not allowed’ in their trust. 71.0 (206/290)% of responders reported their time was predominantly taken by GIM, with 42.1 (110/261)% considering the need to extend their CCT date to compensate for this. 49.0%(128/261) of respondents were considering time out of programme or fellowships and 28.3 (74/261)% considering it in the future. The majority of responders reported virtual or online teaching was provided during the peak of the pandemic.Considering future training;96.8%(245/253) of respondents stated gastroenterology HSTs should have 1 year experience on a GI bleed rota, however only 21.3 (55/258)% reported having experience of this formally during training. 68.8%(174/253) of responders supported the idea of blocks of GIM training during HST to protect gastroenterology training. The majority of trainees (84.2%)(213/253) reported they would not feel ready to be a consultant after 4 years of HST. 46.7(122/261)% of responders would stop GIM training if given the opportunity.ConclusionsIn all aspects of gastroenterology training surveyed, more than half of training time was lost during the pandemic. This included training beyond endoscopy to other aspects of GI work including clinics and referrals. This is mirrored in anticipated concerns about completion of training and the perceived future competence as a consultant at the end of a 4 year higher training programme. Work is now required to ensure training trajectories are restored following the COVID-19 pandemic.

11.
J Appl Lab Med ; 6(6): 1441-1451, 2021 11 01.
Article in English | MEDLINE | ID: covidwho-1493844

ABSTRACT

BACKGROUND: This study outlines the development, implementation, and impact of a laboratory-developed, extraction-free real-time PCR assay as the primary diagnostic test for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in a pediatric hospital. METHODS: Clinical specimens from both upper and lower respiratory tract sources were validated, including nasopharyngeal aspirates, nasopharyngeal swabs, anterior nares swabs, and tracheal aspirates (n = 333 clinical samples). Testing volumes and laboratory turnaround times were then compared before and after implementation to investigate effects of the workflow changes. RESULTS: Compared to magnetic-bead extraction platforms, extraction-free real-time PCR demonstrated ≥95% positive agreement and ≥97% negative agreement across all tested sources. Implementation of this workflow reduced laboratory turnaround time from an average of 8.8 (+/-5.5) h to 3.6 (+/-1.3) h despite increasing testing volumes (from 1515 to 4884 tests per week over the reported period of testing). CONCLUSIONS: The extraction-free workflow reduced extraction reagent cost for SARS-CoV-2 testing by 97%, shortened sample handling time, and significantly alleviated supply chain scarcities due to the elimination of specialized extraction reagents for routine testing. Overall, this assay is a viable option for laboratories to increase efficiency and navigate reagent shortages for SARS-CoV-2 diagnostic testing.


Subject(s)
COVID-19 Testing , COVID-19 , Child , Hospitals, Pediatric , Humans , Real-Time Polymerase Chain Reaction , SARS-CoV-2 , Sensitivity and Specificity , Workflow
12.
Vaccines (Basel) ; 9(11)2021 Oct 22.
Article in English | MEDLINE | ID: covidwho-1481049

ABSTRACT

The impact of COVID-19 disruptions on global Bacillus Calmette-Guérin (BCG) coverage and paediatric tuberculosis (TB) mortality is still unknown. To fill this evidence-gap and guide mitigation measures, we estimated the impact of COVID-19 disruptions on global BCG coverage and paediatric TB mortality. First, we used data from multiple sources to estimate COVID-19-disrupted BCG vaccination coverage. Second, using a static mathematical model, we estimated the number of additional paediatric TB deaths in the first 15 years of life due to delayed/missed vaccinations in 14 scenarios-varying in duration of disruption, and magnitude and timing of catch-up. We estimated a 25% reduction in global BCG coverage within the disruption period. The best-case scenario (3-month disruption, 100% catch-up within 3 months) resulted in an additional 886 (0.5%) paediatric TB deaths, and the worst-case scenario (6-month disruption with no catch-up) resulted in an additional 33,074 (17%) deaths. The magnitude of catch-up was found to be the most influential variable in minimising excess paediatric TB mortality. Our results show that ensuring catch-up vaccination of missed children is a critical priority, and delivery of BCG alongside other routine vaccines may be a feasible way to achieve catch-up. Urgent action is required to support countries with recovering vaccination coverages to minimise paediatric deaths.

13.
Travel Med Infect Dis ; 44: 102171, 2021.
Article in English | MEDLINE | ID: covidwho-1458599

ABSTRACT

BACKGROUND: With no vaccines or specific treatments, non-pharmaceutical interventions are the only tools for controlling the human-to-human transmission of the COVID-19 disease, which appeared in Wuhan, China last December and has spread globally since. Here we describe and compare the first-wave mitigation strategies and epidemiology of five Asia-Pacific countries that responded rapidly to the epidemic. METHODS: From January to April 2020, mitigation measures and epidemiological data for Singapore, South Korea, Japan, Taiwan, Hong Kong were screened from official local government websites and a review of investigational studies was conducted. Daily case reports and mitigation measures information were extracted. Epidemiological estimates were calculated and compared between countries. RESULTS: All five countries combined measures, focusing on contact tracing, testing, isolation efforts and healthcare management. Epidemiological data varied temporally and geographically: incubation period ranged 3.9-7.1 days, effective reproduction number at time t (Rt) ranged 0.48-1.5, with intensive care admissions 1-3% of hospitalised patients, and case fatality rates were 0.1-3%. Extrinsic estimates to the virus were lower than global estimates. CONCLUSION: Implemented mitigation strategies in these countries allowed a rapid and successful control or delay of the first COVID-19 pandemic wave. These are valuable examples to inform subsequent waves.


Subject(s)
COVID-19 , Contact Tracing , Hong Kong , Humans , Pandemics/prevention & control , SARS-CoV-2
14.
ACS Infect Dis ; 7(9): 2596-2603, 2021 09 10.
Article in English | MEDLINE | ID: covidwho-1328835

ABSTRACT

SARS-CoV-2 infection is diagnosed through detection of specific viral nucleic acid or antigens from respiratory samples. These techniques are relatively expensive, slow, and susceptible to false-negative results. A rapid noninvasive method to detect infection would be highly advantageous. Compelling evidence from canine biosensors and studies of adults with COVID-19 suggests that infection reproducibly alters human volatile organic compound (VOC) profiles. To determine whether pediatric infection is associated with VOC changes, we enrolled SARS-CoV-2 infected and uninfected children admitted to a major pediatric academic medical center. Breath samples were collected from children and analyzed through state-of-the-art GCxGC-ToFMS. Isolated features included 84 targeted VOCs. Candidate biomarkers that were correlated with infection status were subsequently validated in a second, independent cohort of children. We thus find that six volatile organic compounds are significantly and reproducibly increased in the breath of SARS-CoV-2 infected children. Three aldehydes (octanal, nonanal, and heptanal) drew special attention, as aldehydes are also elevated in the breath of adults with COVID-19. Together, these biomarkers demonstrate high accuracy for distinguishing pediatric SARS-CoV-2 infection and support the ongoing development of novel breath-based diagnostics.

15.
Open Forum Infect Dis ; 8(7): ofab300, 2021 Jul.
Article in English | MEDLINE | ID: covidwho-1307554

ABSTRACT

We report the genome of a B.1.1.7+E484K severe acute respiratory syndrome coronavirus 2 from Southeastern Pennsylvania and compare it with all high-coverage B.1.1.7+E484K genomes (n = 235) available. Analyses showed the existence of at least 4 distinct clades of this variant circulating in the United States and the possibility of at least 59 independent acquisitions of the E484K mutation.

16.
Sci Adv ; 7(27)2021 06.
Article in English | MEDLINE | ID: covidwho-1290607

ABSTRACT

The global outbreak of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) necessitates the rapid development of new therapies against coronavirus disease 2019 (COVID-19) infection. Here, we present the identification of 200 approved drugs, appropriate for repurposing against COVID-19. We constructed a SARS-CoV-2-induced protein network, based on disease signatures defined by COVID-19 multiomics datasets, and cross-examined these pathways against approved drugs. This analysis identified 200 drugs predicted to target SARS-CoV-2-induced pathways, 40 of which are already in COVID-19 clinical trials, testifying to the validity of the approach. Using artificial neural network analysis, we classified these 200 drugs into nine distinct pathways, within two overarching mechanisms of action (MoAs): viral replication (126) and immune response (74). Two drugs (proguanil and sulfasalazine) implicated in viral replication were shown to inhibit replication in cell assays. This unbiased and validated analysis opens new avenues for the rapid repurposing of approved drugs into clinical trials.


Subject(s)
Drug Repositioning , SARS-CoV-2/physiology , Antiviral Agents/metabolism , Antiviral Agents/pharmacology , Antiviral Agents/therapeutic use , COVID-19/pathology , COVID-19/virology , Humans , Neural Networks, Computer , Proguanil/pharmacology , Proguanil/therapeutic use , SARS-CoV-2/immunology , SARS-CoV-2/isolation & purification , Sulfasalazine/pharmacology , Virus Replication/drug effects , COVID-19 Drug Treatment
17.
Infect Control Hosp Epidemiol ; 43(10): 1482-1484, 2022 10.
Article in English | MEDLINE | ID: covidwho-1284661

ABSTRACT

Early in the coronavirus disease 2019 (COVID-19) pandemic, the CDC recommended collection of a lower respiratory tract (LRT) specimen for severe acute respiratory coronavirus virus 2 (SARS-CoV-2) testing in addition to the routinely recommended upper respiratory tract (URT) testing in mechanically ventilated patients. Significant operational challenges were noted at our institution using this approach. In this report, we describe our experience with routine collection of paired URT and LRT sample testing. Our results revealed a high concordance between the 2 sources, and that all children tested for SARS-CoV-2 were appropriately diagnosed with URT testing alone. There was no added benefit to LRT testing. Based on these findings, our institutional approach was therefore adjusted to sample the URT alone for most patients, with LRT sampling reserved for patients with ongoing clinical suspicion for SARS-CoV-2 after a negative URT test.


Subject(s)
COVID-19 , SARS-CoV-2 , Humans , Child , COVID-19/diagnosis , Pandemics , COVID-19 Testing , Respiratory System
18.
J Pediatric Infect Dis Soc ; 10(5): 669-673, 2021 May 28.
Article in English | MEDLINE | ID: covidwho-1262143

ABSTRACT

Severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) antibody responses in children remain poorly characterized. Here, we show that pediatric patients with multisystem inflammatory syndrome in children (MIS-C) possess higher SARS-CoV-2 spike immunoglobulin G (IgG) titers compared with those with severe coronavirus disease 2019, likely reflecting a longer time since the onset of infection in MIS-C patients.


Subject(s)
Antibodies, Viral/immunology , Antibody Formation , COVID-19/immunology , Spike Glycoprotein, Coronavirus/immunology , Systemic Inflammatory Response Syndrome/immunology , COVID-19 Serological Testing , Child , Female , Humans , Immunoglobulin A/immunology , Immunoglobulin G/immunology , Immunoglobulin M/immunology , Male , SARS-CoV-2 , Severity of Illness Index
19.
Lancet Reg Health West Pac ; 10: 100140, 2021 May.
Article in English | MEDLINE | ID: covidwho-1198957

ABSTRACT

BACKGROUND: Data on COVID-19-induced disruption to routine vaccinations in the South-East Asia and Western Pacific regions (SEAR/WPR) have been sparse. This study aimed to quantify the impact of COVID-19 on routine vaccinations by country, antigen, and sector (public or private), up to 1 June 2020, and to identify the reasons for disruption and possible solutions. METHODS: Sanofi Pasteur teams from 19 countries in SEAR/WPR completed a structured questionnaire reporting on COVID-19 disruptions for 13-19 routinely delivered antigens per country, based on sales data, government reports, and regular physician interactions. Data were analysed descriptively, disruption causes ranked, and solutions evaluated using a modified public health best practices framework. FINDINGS: 95% (18/19) of countries reported vaccination disruption. When stratified by country, a median of 91% (interquartile range 77-94) of antigens were impacted. Infancy and school-entry age vaccinations were most impacted. Both public and private sector healthcare providers experienced disruptions. Vaccination rates had not recovered for 39% of impacted antigens by 1 June 2020. Fear of infection, movement/travel restrictions, and limited healthcare access were the highest-ranked reasons for disruption. Highest-scoring solutions were separating vaccination groups from unwell patients, non-traditional vaccination venues, virtual engagement, and social media campaigns. Many of these solutions were under-utilised. INTERPRETATION: COVID-19-induced disruption of routine vaccination was more widespread than previously reported. Adaptable solutions were identified which could be implemented in SEAR/WPR and elsewhere. Governments and private providers need to act urgently to improve coverage rates and plan for future waves of the pandemic, to avoid a resurgence of vaccine-preventable diseases. FUNDING: Sanofi Pasteur.

20.
Acad Pathol ; 8: 23742895211006822, 2021.
Article in English | MEDLINE | ID: covidwho-1183493

ABSTRACT

The Coronavirus 2019 pandemic has strained nearly every aspect of pathology practice, including preanalytic, analytic, and postanalytic processes. Much of the challenges result from high demand for limited severe acute respiratory syndrome coronavirus 2 testing capacity, a resource required to facilitate patient flow throughout the hospital system and society at large. At our institution, this led to unprecedented increases in inquiries from providers to laboratory staff relating to the expected time to result for their patients. The demand was great enough to require redeployment of staff to handle the laboratory call volume. Although these data are available in our laboratory information system, the data do not interface to our electronic health record system. We developed systems using the R statistical programming language that abstract the necessary data regarding severe acute respiratory syndrome coronavirus 2 polymerase chain reaction testing from our lab system in real time, store it, and present it to clinicians for on demand querying. These data have been accessed over 2500 times by over 100 distinct users. Median length of each user session is approximately 4.9 minutes. Because our lab information system does not persistently store tracking information while our system does, we have been able to iteratively recalculate time to result values for each tracking stop as workflows have changed over time. Facility with informatics and programming concepts coupled with clinical understanding have allowed us to swiftly develop and iterate on applications which provide efficiency gains, allowing laboratory resources to focus on generating test results for our patients.

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