Din, M. , Zia, F. , Khalil, A.T. , Ali, .M. and Shinwari, Z.K. 2021. Functional Food Plants and their Potential Antiviral and Immunomodulatory Properties: the Covid-19 Perspective : Food as a potential weapon against Covid-19 . Proceedings of the Pakistan Academy of Sciences: B. Life and Environmental Sciences. 58, S (Aug. 2021), 1–10.