COVID-19 infection, and reinfection, and vaccine effectiveness against symptomatic infection among health care workers in the setting of omicron variant transmission in New Delhi, India.

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.

Dental manifestations of pseudo-vitamin-D deficiency rickets in a paediatric patient.

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.

A Letter Regarding Recently Published Systematic Review Comparing the Effectiveness of Manual and Rotary Root Canal Instrumentation in Primary Teeth.

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.