Synergistic Effect of Quercetin and Vitamin C Against COVID-19: Is a Possible Guard for Front Liners
This study aimed to evaluate if quercetin and vitamin C could be protective against Novel Coronavirus.
Methods: In prophylaxis group supplementation containing 500mg of quercetin, 500mg of vitamin C and 50mg of bromelain (QCB) was initiated daily in 2 divided doses for 71 healthcare workers working in areas with high risk of COVID-19, whereas 42 were determined as control group without using supplements.A maximum period of follow-up was determined as 120 days.Termination of use of QCB earlier or having a Coronavirus infection was considered as final point.At the end rapid diagnostic test used to detect immunoglobulin positivity.
Results: A total of 113 persons included. No significant difference detected between groups in terms of other features.Mean age of QCB group was 39.0 ± 8.8 years and control group was 32.9 ± 8.7.Average follow-up period for the QCB group was 113 days, and for the control group, 118, during follow-up period, 1 healthcare worker in QCB group and 9 out of 42 in control group had COVID-19.One of cases was asymptomatic, while others were not.Transmission risk hazard ratio whose did not receive QCB was 12.04 (95% Confidence interval= 1.26-115.06, P = 0.031).No significant effect of gender, smoking, antihypertensive medication exposure and having chronic disease on rate of transmission.
Conclusion: This study revealed that QCB was protective for healthcare workers.