1 Habas K, Nganwuchu C, Shahzad F, et al. Resolution of coronavirus disease 2019 (COVID-19). Expert Rev. Anti. Infect. Ther. 2020; 18: 1201–11.
2 Mohamadian M, Chiti H, Shoghli A, Biglari S, Parsamanesh N, Esmaeilzadeh A. COVID-19: Virology, biology and novel laboratory diagnosis. J Gene Med 2021; 23. DOI:10.1002/jgm.3303.
3 Wu Z, McGoogan JM. Characteristics of and Important Lessons from the Coronavirus Disease 2019 (COVID-19) Outbreak in China: Summary of a Report of 72314 Cases from the Chinese Center for Disease Control and Prevention. JAMA - J Am Med Assoc 2020; 323: 1239–42.
4 Bobker SM, Robbins MS. COVID-19 and Headache: A Primer for Trainees. Headache 2020; 60: 1806–11.
5 Niazkar HR, Zibaee B, Nasimi A, Bahri N. The neurological manifestations of COVID-19: a review article. Neurol Sci 2020; 41: 1667–71.
6 Lu R, Zhao X, Li J, et al. Genomic characterisation and epidemiology of 2019 novel coronavirus: implications for virus origins and receptor binding. Lancet 2020; 395: 565–74.
7 Rothan HA, Byrareddy SN. The epidemiology and pathogenesis of coronavirus disease (COVID-19) outbreak. J Autoimmun 2020; 109: 102433.
8 Neurath MF. COVID-19 and immunomodulation in IBD. Gut 2020; 69: 1335–42.
9 Sulaiman CT, Deepak M, Ramesh PR, Mahesh K, Anandan EM, Balachandran I. Chemical profiling of selected Ayurveda formulations recommended for COVID-19. Beni-Suef Univ J Basic Appl Sci 2021; 10: 2.
10 Jiang ZY, Liu WF, Zhang XM, Luo J, Ma YB, Chen JJ. Anti-HBV active constituents from Piper longum. Bioorganic Med Chem Lett 2013; 23: 2123–7.
11 Mouhajir F, Hudson JB, Rejdali M, Towers GHN. Multiple antiviral activities of endemic medicinal plants used by Berber peoples of Morocco. Pharm Biol 2001; 39: 364–74.
12 Nag A, Chowdhury RR. Piperine, an alkaloid of black pepper seeds can effectively inhibit the antiviral enzymes of Dengue and Ebola viruses, an in silico molecular docking study. VirusDisease 2020; 31: 308–15.
13 Mair C, Liu R, Atanasov A, Schmidtke M, Dirsch V, Rollinger J. Antiviral and anti-proliferative in vitro activities of piperamides from black pepper. Planta Med 2016; 81: S1–381.
14 Chang JS, Wang KC, Yeh CF, Shieh DE, Chiang LC. Fresh ginger (Zingiber officinale) has anti-viral activity against human respiratory syncytial virus in human respiratory tract cell lines. J Ethnopharmacol 2013; 145: 146–51.
15 Kaushik S, Jangra G, Kundu V, Yadav JP, Kaushik S. Anti-viral activity of Zingiber officinale (Ginger) ingredients against the Chikungunya virus. VirusDisease 2020; 31: 270–6.
16 Roshdy WH, Rashed HA, Kandeil A, et al. EGYVIR: An immunomodulatory herbal extract with potent antiviral activity against SARS-CoV-2. PLoS One 2020; 15: e0241739.
17 Kumar G, Kumar D, Singh NP. Therapeutic Approach against 2019-nCoV by Inhibition of ACE-2 Receptor. Drug Res (Stuttg) 2021; 71: 213–8.
18 Dhanani T, Shah S, Kumar S. A validated high-performance liquid chromatography method for determination of tannin-related marker constituents gallic acid, Corilagin, Chebulagic Acid, Ellagic Acid and Chebulinic Acid in four terminalia species from India. J Chromatogr Sci 2015; 53: 625–32.
19 Boozari M, Hosseinzadeh H. Natural products for COVID-19 prevention and treatment regarding to previous coronavirus infections and novel studies. Phyther Res 2021; 35: 864–76.
20 Haridas M, Sasidhar V, Nath P, Abhithaj J, Sabu A, Rammanohar P. Compounds of Citrus medica and Zingiber officinale for COVID-19 inhibition: in silico evidence for cues from Ayurveda. Futur J Pharm Sci 2021; 7: 13.
21 Fajnzylber J, Regan J, Coxen K, et al. SARS-CoV-2 viral load is associated with increased disease severity and mortality. Nat Commun 2020; 11: 5493.
22 Pujadas E, Chaudhry F, McBride R, et al. SARS-CoV-2 viral load predicts COVID-19 mortality. Lancet Respir Med 2020; 8: e70.
23 Bang JS, Oh DH, Choi HM, et al. Anti-inflammatory and antiarthritic effects of piperine in human interleukin 1β-stimulated fibroblast-like synoviocytes and in rat arthritis models. Arthritis Res Ther 2009; 11: R49.
24 Mashhadi NS, Ghiasvand R, Askari G, Hariri M, Darvishi L, Mofid MR. Anti-oxidative and anti-inflammatory effects of ginger in health and physical activity: Review of current evidence. Int J Prev Med 2013; 4: S1–7.
25 Beyerstedt S, Casaro EB, Rangel ÉB. COVID-19: angiotensin-converting enzyme 2 (ACE2) expression and tissue susceptibility to SARS-CoV-2 infection. Eur J Clin Microbiol Infect Dis 2021; 40: 905–19.
26 Maurya VK, Kumar S, Prasad AK, Bhatt MLB, Saxena SK. Structure-based drug designing for potential antiviral activity of selected natural products from Ayurveda against SARS-CoV-2 spike glycoprotein and its cellular receptor. VirusDisease 2020; 31: 179–93.
27 Bare Y, Helvina M, Krisnamurti GC, S M. The Potential Role of 6-gingerol and 6-shogaol as ACE Inhibitors in Silico Study. Biog J Ilm Biol 2020; 8: 210.
28 Ankita Singh Chakotiya , Rakesh Kumar Sharma Phytoconstituents of Zingiber officinale Targeting Host-viral Protein Interaction at Entry Point of SARS-CoV-2: A Molecular Docking Study Defence Life Science Journal. 2020 ; 5. 4: 268-277,
29 Danish Javed , AshiIs Trikatu; an ayurvedic formulation effective for the management of flu-like illness? A narrative reviews: J Complement Integr Med jcim-2020-0485.
30 Interdisciplinary Committee for integration of Ayurveda and Yoga Interventions in the 'National Clinical Management Protocol: COVID-19' (OM No. A. 17020/1/2020-E.I dated 16th July 2020, Ministry of AYUSH, Govt. of India) page 161,166
31 M.K. Santosh, D Shaila –RP HPLC method of determination of piperine from piper longum linn and Piper nigrum Linn ;E Journel Of Chemistry Vol 2 No 2, pp 131-135 March 2005
32 Ernest Jay V Cafino, Marcelina B Lirazan1, Eufrocinio C Marfori -A Simple HPLC Method for the Analysis of [6]-Gingerol Produced by Multiple Shoot Culture of Ginger (Zingiber officinale) ; International Journal of Pharmacognosy and Phytochemical Research 2016; 8(1); 38-42
33 Bhushan Patwardhan 1, Ashok D B Vaidya Indian J Exp Biol 2010 Mar;48(3):220-7.
34 Vaidya A. Reverse pharmacological correlates of ayurvedic drug actions. Indian J Pharmacol 2006;38:311-5