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Lancet Reg Health Southeast Asia ; 3: 100023, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35769163


Background: Surge of SARS CoV-2 infections ascribed to omicron variant began in December 2021 in New Delhi. We determined the infection and reinfection density in a cohort of health care workers (HCWs) along with vaccine effectiveness (VE) against symptomatic infection within omicron transmission period (considered from December 01, 2021 to February 25, 2022. Methods: This is an observational study from the All India Institute of Medical Sciences, New Delhi. Data were collected telephonically. Person-time at risk was counted from November 30, 2021 till date of infection/ reinfection, or date of interview. Comparison of clinical features and severity was done with previous pandemic periods. VE was estimated using test-negative case-control design [matched pairs (for age and sex)]. Vaccination status was compared and adjusted odds ratios (OR) were computed by conditional logistic regression. VE was estimated as (1-adjusted OR)X100-. Findings: 11474 HCWs participated in this study. The mean age was 36⋅2 (±10⋅7) years. Complete vaccination with two doses were reported by 9522 (83%) HCWs [8394 (88%) Covaxin and 1072 Covishield (11%)]. The incidence density of all infections and reinfection during the omicron transmission period was 34⋅8 [95% Confidence Interval (CI): 33⋅5-36⋅2] and 45⋅6 [95% CI: 42⋅9-48⋅5] per 10000 person days respectively. The infection was milder as compared to previous periods. VE was 52⋅5% (95% CI: 3⋅9-76⋅5, p = 0⋅036) for those who were tested within 14-60 days of receiving second dose and beyond this period (61-180 days), modest effect was observed. Interpretation: Almost one-fifth of HCWs were infected with SARS CoV-2 during omicron transmission period, with predominant mild spectrum of COVID-19 disease. Waning effects of vaccine protection were noted with increase in time intervals since vaccination. Funding: None.

BMJ Case Rep ; 14(12)2021 Dec 30.
Artigo em Inglês | MEDLINE | ID: mdl-34969788


Vitamin D-resistant rickets shows the resistance to vitamin D (Vit-D) therapy, which traditionally works well in cases with deficiency rickets. The signs start appearing as early as in the first month of life and are characterised by the defective mineralisation at the ends of cartilage and bones despite having normal Vit-D levels in the serum. This case report highlights the dental and maxillofacial manifestations in a 3-year-old girl diagnosed with pseudo-Vit-D deficiency rickets. The report also highlights the variations in the dental manifestations of the condition reported in the literature.

Raquitismo Hipofosfatêmico Familiar , Raquitismo , Deficiência de Vitamina D , Osso e Ossos , Criança , Pré-Escolar , Raquitismo Hipofosfatêmico Familiar/complicações , Feminino , Humanos , Raquitismo/diagnóstico , Raquitismo/etiologia , Vitamina D , Vitaminas
Int J Clin Pediatr Dent ; 13(3): 310, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32904105


How to cite this article: Rahul M, Tewari N, Gowthaman K. A Letter Regarding Recently Published Systematic Review Comparing the Effectiveness of Manual and Rotary Root Canal Instrumentation in Primary Teeth. Int J Clin Pediatr Dent 2020;13(3):310.