Retrospective Observational Study on the Risk in Developing Long-COVID Syndrome and in Contracting SARS-CoV-2 Infection After COVID-19 Vaccination in Relation to Vitamin D3 Supplementation

Active, not recruitingOBSERVATIONAL

Enrollment

200

Participants

Timeline

Start Date

March 20, 2024

Primary Completion Date

March 31, 2025

Study Completion Date

March 31, 2027

Conditions

Vitamin d DeficiencyCOVID-19Long COVID

Trial Locations (1)

Luigi di Filippo, Milan

All Listed Sponsors

lead

IRCCS San Raffaele

OTHER