
Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown
Published: Dec. 22, 2023
Language: Английский
Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown
Published: Dec. 22, 2023
Language: Английский
Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)
Published: Sept. 30, 2024
Language: Английский
Citations
4Vaccine, Journal Year: 2024, Volume and Issue: 42(5), P. 1168 - 1178
Published: Jan. 25, 2024
Healthcare workers (HCWs) from an interprovincial Canadian cohort gave serial blood samples to identify factors associated with anti-receptor binding domain (anti-RBD) IgG response the SARS-CoV-2 virus. Members of HCW donated four months after their first immunization and again at 7, 10 13 months. Date type immunizations dates infection were collected each contacts, together information on immunologically-compromising conditions current therapies. Blood analyzed centrally for anti-RBD anti-nucleocapsid (Abbott Architect, Abbott Diagnostics). Records testing public health agencies used assess impact reporting errors estimates random-effects multivariable model fitted data. 2752 4567 vaccinated participants agreed donate least one sample. Modelling titer 8903 showed increase in vaccine dose infection. A decrease was found number since vaccination or infection, sharpest decline third dose. An regime that included mRNA1273 (Moderna) resulted higher IgG. Participants multiple sclerosis, rheumatoid arthritis taking selective immunosuppressants, tumor necrosis factor inhibitors, calcineurin inhibitors antineoplastic agents had lower Supplementary analyses those side-effects vaccination, no relation obesity titers women immunized early mid-pregnancy. Sensitivity analysis results suggested important bias self-report Creation a prospective central credibility presented here. Serial serology assessments, longitudinal analysis, provided effect enhanced accuracy clearer understanding medical other affecting vaccination.
Language: Английский
Citations
2Vaccine, Journal Year: 2023, Volume and Issue: 41(47), P. 6969 - 6979
Published: Oct. 13, 2023
Repeated emergence of variants with immune escape capacity and waning immunity from vaccination are major concerns for COVID-19. We examined whether the surge in Omicron subvariant BA.5 cases was due to or through vaccine effectiveness (VE) evaluation.A test-negative case-control study conducted 16 clinics/hospitals during BA.1/BA.2-dominant BA.5-dominant periods. VE against symptomatic infection estimated after adjusting age, sex, comorbidity, occupation, testing frequency, prior infection, close contact history, clinic/hospital, week, preventive measures. Absolute (aVE) calculated 2/3/4 doses, compared unvaccinated. Relative (rVE) calculated, comparing 3 vs 2 4 doses.13,025 individuals were tested periods similar baseline characteristics. For BA.1/BA.2, aVE 52 % (95 %CI:34-66) 14 days-3 months post-dose 2, 42 (29-52) > 6 71 (64-77) 3, 68 (52-79) 3-6 3. rVE 49 (38-57) 45 (18-63) BA.5, 56 (27-73) 32 (12-47) 70 (61-78) 59 (48-68) 50 (29-64) 74 (61-83) ≥ days 4. (45-65) 39 (27-48) 25 (-2-45) 30 (-6-54) 4.Booster doses initially provided high protection at a level that BA.1/BA.2. However, seemed shorter-lasting which likely contributed surge. Furthermore, low even among recent vaccinees. These results support introduction variant-containing vaccines emphasize need longer duration protection.
Language: Английский
Citations
5Vaccine, Journal Year: 2024, Volume and Issue: 42(23), P. 126058 - 126058
Published: June 15, 2024
During the COVID-19 pandemic, clinical care shifted toward virtual and Emergency Department care. We explored feasibility of mRNA vaccine effectiveness (VE) estimation against SARS-CoV-2-related visits hospitalizations using prospectively collected data. estimated two-dose VE a test-negative design data from 10 participating sites Canadian Rapid Response Network (CCEDRRN). included patients presenting with symptoms nucleic acid amplification testing for SARS-CoV-2 between July 19 December 31, 2021. excluded unclear vaccination one or more than 2 doses by their visit. Among 3,405 eligible patients, adjusted was 93.3 % (95 CI 87.9–96.3 %) 7–55 days, sustained over 80 through 139 days post-vaccination. In stratified analyses, similar among select immune-compromising conditions, chronic kidney disease, lung unstable housing, reported illicit substance use. Two-dose visit high sustained, including vulnerable subgroups. Compared to administrative datasets, active enrolment enables standardization access indication supports separate assessment special population other settings, Departments consistently function during crises when alternate healthcare sectors become variably closed. Trial registration: Clinicaltrials.gov, NCT0470294.
Language: Английский
Citations
1Human Vaccines & Immunotherapeutics, Journal Year: 2024, Volume and Issue: 20(1)
Published: July 22, 2024
Seasonal vaccination remains one of the best interventions to prevent morbidity and mortality from influenza in children. Understanding characteristics parents who vaccinate their children can inform communication strategies encourage immunization. Using a cross-sectional study, we described parental people reported vaccinating against during 2018/2019 cohort Canadian digital immunization record users. Data was collected free, Pan-Canadian tool, CANImmunize. Eligible accounts contained at least "child/dependent" record. Each characteristic (gender, age, family size, etc) tested for association with pediatric vaccination, multivariate logistic regression model fit. A total 6,801 CANImmunize met inclusion criteria. After collapsing dataset, final sample 11,381 unique dyads. Influenza 32.3% 42.0% parents. In analysis, receiving seasonal vaccine were most strongly associated reporting (OR 17.05, 95% CI 15.08, 19.28). Having larger size fewer transactions study period not vaccination. While there are several limitations this large-scale these results help future research area. Digital technologies may provide valuable source coverage data explore associations between individual behavior. Policy makers considering messaging want tailor efforts based on further improve uptake.
Language: Английский
Citations
1Emergency Medicine Journal, Journal Year: 2024, Volume and Issue: 41(4), P. 210 - 217
Published: Feb. 16, 2024
Unplanned return emergency department (ED) visits can reflect clinical deterioration or unmet need from the original visit. We determined characteristics and outcomes of patients with COVID-19 who to ED for COVID-19-related revisits.
Language: Английский
Citations
0Infectious Diseases and Therapy, Journal Year: 2024, Volume and Issue: 13(8), P. 1743 - 1757
Published: June 23, 2024
Oral antiviral medications are important tools for preventing severe COVID-19 outcomes. However, their uptake remains low reasons that not entirely understood. Our study aimed to assess the association between perceived risk outcomes and oral use among those who were eligible treatment based on Centers Disease Control Prevention (CDC) guidelines. We surveyed 4034 non-institutionalized US adults in April 2023, report findings from 934 antiviral-eligible participants with at least one confirmed SARS-CoV-2 infection since December 1, 2021 no current long COVID symptoms. Survey weights used yield nationally representative estimates. The primary exposure of interest was whether themselves be "at high COVID-19." outcome a within 5 days suspected infection. Only 18.5% considered 16.8% 15.9% took antivirals any time or infection, respectively. In contrast, 79.8% aware treatments COVID-19. Perceived high-risk status associated being more likely (adjusted prevalence ratio [aPR]: 1.11 [95% confidence interval (CI) 1.03–1.20]), prescribed (aPR 1.47 CI 1.08–2.01]), take 1.61 1.16–2.24]) 1.72 1.23–2.40]). Despite widespread awareness availability antivirals, than 80% did receive them. suggest differences actual (based CDC guidelines) may partially explain this uptake.
Language: Английский
Citations
0Journal of Autism and Developmental Disorders, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 18, 2024
Language: Английский
Citations
0BMJ Open, Journal Year: 2024, Volume and Issue: 14(11), P. e083280 - e083280
Published: Nov. 1, 2024
Objective The objective is to externally validate and assess the opportunity update Canadian COVID-19 Mortality Score (CCMS) predict in-hospital mortality among consecutive non-palliative patients infected with Omicron subvariants at a time when vaccinations were widespread. Design This observational study validated CCMS in an external cohort variants dominant. We assessed potential rule improve its performance by recalibrating adding vaccination status subset of from provinces access data created adjusted (CCMS adj ). followed discharged for 30 days after their index emergency department visit or entire hospital stay if admitted. Setting External validation CCMS: 36 hospitals participating Emergency Department Rapid Response Network (CCEDRRN). Update : 14 CCEDRRN data. Participants Consecutive presenting departments. Main outcome measures In-hospital mortality. Results Of 39 682 eligible patients, 1654 (4.2%) died. included age, sex, residence type, arrival mode, chest pain, severe liver disease, respiratory rate level support predicted area under curve (AUC) 0.88 (95% CI 0.87 0.88) validation. Updating create changed weights homelessness, but only marginally improved performance, while did not. had AUC 0.91 0.89 0.92) scores <10 categorised as low risk <1.6%. A score>15 observed >56.8%. Conclusions remained highly accurate predicting through recalibration. Adding not performance. can be used inform patient prognosis, goals care conversations guide clinical decision-making COVID-19.
Language: Английский
Citations
0Social Psychiatry and Psychiatric Epidemiology, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 6, 2024
Language: Английский
Citations
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