The NHSN was established in 2005 to integrate and supersede 3 legacy surveillance systems at the Centers for Disease Control and Prevention (CDC): the NNIS system,
the Dialysis Surveillance Network (DSN), and the National Surveillance of Healthcare Workers (NaSH). Similar to the NNIS system, NHSN facilities voluntarily report their healthcare-associated infection (HAI) surveillance
data for aggregation into a single national database
这就是NHSN,习惯了NNIS,现在这个很新鲜哦。。。。。。