The Precision Public Health (PPH) is a new field driven by technological advances that enable more precise descriptions and analyses of individuals and population groups, with a view to improving the overall health of populations. PPH can be simply viewed as delivering the right intervention to the right population at the right time. It draws on a broad range of disciplines including genomics, spatial data, data linkage, epidemiology, health informatics, big data, predictive analytics and communications. Beyond genomics, all kinds of data can be used in measuring determinants of health and impact of interventions. A priority for public health is the use of information technology and data science in enhancing public health surveillance and tracking. Top priorities included: early detection of outbreaks, modernizing surveillance, and targeted health interventions. To achieve such improvements, comprehensive and real-time data to learn from are necessary. A recent application of PPH is the rapid emergence of a novel corona virus has facilitated an accelerated use of the applications of “big data” tools and technologies like use of whole-genome sequencing to track the virus origin and spread; detailed geographic information to track spread at the global, country, and local levels ; the use of smart phone-based tracking and control ; and rapid characterization of risk

big data,covid 19, genomics, precision medicine