Global-epidemic COVID-19 changes the human civilization, health, travel, socioeconomic, education, and clinical research totally, with no targeted therapeutics, and treatment options. So, the effect of the virus is likely to be seen long after medical science offers a cure for COVID-19. India emphasis on different nutritious-vegetables for improving immunity to human-disease-free-healthy-life is naturally-infected with different-diseases caused by pathogens, significantly hampering food-production. Though pesticides are the most effective means of control, but they are not, cost-effective and environment-friendly. So, it has been an urgency to require; new and more efficient-solutions, technologies, products to fulfill its food and nutritional requirement, and methods to develop best vaccines or social-vaccine or the best medical therapy for immediately to control the coronavirus-COVID-19-disease and prevent more damage. Amaranth is a nutritious as well as traditional-medicinal-vegetables-plant. So, it is focused on the amaranth-plant, intercropped with okra-plant, to determine the effects on pathogens-infected-diseases of both plants; Root-Knot, Mosaic-Virus and Leaf-Curl-Virus in a well-protected-garden. After harvesting, of the two-plant-species, amaranth received maximum pathogen-infection, forming the “Potential-Eco-Friendly-Highly-Economical-Biomedicines-Catch-Vegetable-Crop-Plants”, conserving “Biodiversity-Conservations-Sustainable-Climate-Health and Development with Important Socio-Economic-Implications in Agriculture”, though both are highly susceptible to diseases, and the farmers would be benefited double; by controlling-diseases, and by buying-selling the amaranth-okra. In biomedicines, highly-trace-tolerance-amaranth-vegetables or the plant-virus; Amaranth-Mosaic-Virus, Okra-Yellow-Vein-Mosaic-Virus, Amaranth-Leaf-Curl-Virus, and Okra-Enation-Leaf-Curl-Virus, which has been developed as antigenic-epitopes derived from the vaccine-targets-COVID-19 infec