4. Conclusion
Much progress has been achieved to elucidate the multifaceted function of lactoferrin (Lf) in the past 30 years as an antiviral as well as a unique anti-inflammatory and immunomodulatory molecule. We have presented the experimental as well as clinical rationale for its use for COVID-19, but further experiments to verify its inhibition of the virus and clinical trials to elucidate dosage and efficacy are necessary to confirm the potential of Lf for SAR-CoV-2 prevention as well as COVID-19 treatment.