Objective We studied the safety and efficacy of hydroxychloroquine (HCQ) as pre-exposure prophylaxis for COVID-19 in healthcare workers (HCWs). using a meta-analysis of randomised controlled trials (RCTs). Data sources PubMed and EMBASE databases were searched to identify randomised trials studying HCQ. Study selection Ten RCTs were identified (n=5079 participants). https://parisnaturalfoodes.shop/product-category/beets/