Warning icon The browser that you are currently trying to use to access the HCAI DCS system is not a compatible browser version.

HCAI DCS system is best viewed in Internet Explorer 9, 10, 11, Firefox, Google Chrome and Microsoft Edge.
Help | AAA
Frequently Asked Questions
C. Data queries
Apportionment Rules
APP - FAQ0003

Q: What does Location of onset/Onset of Infection mean?

A: Mandatory Surveillance terminology uses Location of Onset to refer to where the infection is deemed to have been acquired.