They have set up social media surveillance programs to collaborate with Microsoft, which had a nice infrastructure for doing this, and others, to look at Twitter feeds, to look at Facebook feeds, to look at search logs, to try to see early signs that drugs, either individually or together, are causing problems.
Tiñan programas de vixilancia  dos medios sociais para colaborar con Microsoft, que tiñan boa infraestrutura para facer isto, e outros, para observar os contidos do Twitter, do Facebook, os rexistros das buscas, para buscar sinais de que os medicamentos, por separado ou en conxunto, están causando problemas.