Exploring the long-term seroprevalence of SARS-CoV-2 antibodies in infants born to women with clinical or laboratory-confirmed COVID-19.

Introduction: Infants are at a higher risk of severe illness with COVID-19 infection compared to older children. While COVID-19 vaccination is not recommended for young infants, they can acquire maternally-derived anti-SARS-CoV-2 antibodies passively through the placenta and breastmilk. We described the persistence of infection-induced maternal antibodies in infant circulation at 9-12 months of age.

Measurement of sound levels in a neonatal intensive care unit of a tertiary care hospital, Karachi, Pakistan.

Background: High sound levels in the neonatal intensive care unit (NICU) can alter preterm newborn hemodynamics and cause long-term neuro-developmental delays and hearing loss. The study aims to collate data on sound levels in a level IV NICU of a tertiary care hospital, identify the factors associated with them, and compare them with the international standards set by the World Health Organization (WHO), Environmental Protection Agency (EPA), and American Academy of Pediatrics (AAP).

Methods: We carried out a cross-sectional study in NICU from 8th April 2019 to 30th June 2019.