Microbes: Friends or foe? An overview on the impact of COVID-19 pandemic on human health and modern eugenics for recurrence prevention

Microbes are an essential component of our ecosystem which have coexisted with humans and all other life forms for millions of years. These microbes have proven beneficial in our everyday life in many ways, but the recognized pathogenic forms have also proven to be dangerous to human life. The recent pandemic caused by the severe acute respiratory syndrome coronavirus 2 is evidence for the significant impact of negative human interference with the natural ecosystem which might include but is not limited to rapid urbanization, pollution, agricultural change, food consumption, and global warming. In this context, the principle of “eugenics” proposed by Sir Galton has been discussed in the current perspective. The aim of this review is to discuss the application of ethical scientific practices to promote healthy human evolution without disturbing the ecological balance. We reviewed literature relevant to the impact of microbial systems on public health including the recent COVID-19 pandemic. We suggest that the concept of “modern eugenics” should be reconsidered in ethical scientific terms by focusing on the beneficial gene(s) and eliminating harmful gene(s) of pathogenic organisms. This might contribute to the human genetic enhancement and facilitate a safe symbiotic ecosystem. In the past, scientists have successfully developed simple and safe bioassays for the identification of mutagens and carcinogens using pathogenic microorganisms. Similarly, recently developed gene therapies using viral vectors are excellent examples of the ethical and scientific application of modern eugenics for healthy human evolution. Therefore, it is necessary to establish an “International Society for Positive Science” comprising of individuals from all fields to critically analyze the positive and ethical use of science to promote and strengthen the cohabitation of all species and prevent the recurrence of future pandemics.