>40k tests revealed 246 confirmed cases: 39% primary & 61% secondary
This is the gold standard of how to effectively conduct contact tracing, especially in stigmatized populations (see below) bit.ly/2ZQpnJC
Phenomenal.
The balance of privacy vs public safety/health is a debate that started long before #COVID19 & will continue long after.
The above is just an example of using tools at your disposal to rapidly and effectively quell what could have been a much larger outbreak.