I wrote about Massachusetts' ambitious plan for contact tracing, which is built around the most old-school of public health tools: Human contact. https://t.co/wCI6dBNCPo— Ellen Barry (@EllenBarryNYT) April 16, 2020
I wrote about Massachusetts' ambitious plan for contact tracing, which is built around the most old-school of public health tools: Human contact. https://t.co/wCI6dBNCPo