It is a near future. Preventive healthcare is transforming society. Some diseases such as diabetes* are treated before they develop, and others, like f.e. some tumour kinds, are discovered very early, where it is possible to cure them at low cost.
Such a transformation was possible because ubiquitous sensors and efficient big data solutions let us gather an incredible amount of data and significantly reduced the cost of clinical research.
You run a gov health department. You would like to DNA test citizens of your country to prevent diseases such as AS, which are heavily correlated with certain genes and easily treatable by f.e. regular exercises. The problem is that a single commercial DNA sequencing is $50, which is a half of your budget per person. You need to get to $5.
** lethal diseases predicted many years ahead causing depression and suicides, health risk clauses being used in prenuptial agreements, possibly others