author(s)
Lakshman Mekala, K Satish Kumar and Rachana Mekala

abstract
All contiguous diseases are infectious, but all infectious diseases are not contagious. Many contagious and zoonotic diseases are posing new challenges to the global scientific community. Year after year these threats are increasing in addition to environmental pollution and antimicrobial resistance (AMR). Presently the globe is under threat of novel coronavirus (nCoV-19) where all the countries are following the physical distance (Not the social distance) to contain the SARS-CoV-2/Human coranavirus19 (HCoV-19) as a preventive measures. Change in the biological cycle of human being and global ecosystem is giving the way to contagious and pollution related mutational changes in the etiological agents. The process of liberalization, privatization and globalization has made the Universe as one consequentially free movement of people and biological material across the globe. The war is visible but, biological war is an invisible war, the nCoV is process of natural selection of large population for its survival which made all the countries to declare silent war (3^rd world war). Immunity, food, hygiene and their interrelation ship is also important to contain the present threat. All and above today's urge is global collaboration / Intercontinental / Inter Institutional/ Intersectional approach but not the neocolonial or imperialistic.