Influencing variables on total and free 25(OH)D levels in healthy population.

Introduction: Vitamin D plays a fundamental role in calcium homeostasis and bone metabolism. It mainly comes from cutaneous synthesis through the action of sunlight. Therefore, variations in exposure to this radiation modify serum levels.

Sars-Cov-2 Infection in Patients on Long-Term Treatment with Macrolides in Spain: A National Cross-Sectional Study.

The aim of this study was to know the prevalence and severity of COVID-19 in patients treated with long-term macrolides and to describe the factors associated with worse outcomes. A cross-sectional study was conducted in Primary Care setting. Patients with macrolides dispensed continuously from 1 October 2019 to 31 March 2020, were considered.