There are events in many countries: http://www.survivorday.org/international-survivor-day-events/ (I know the list is not complete because Milan is missing).

As a followup to https://lists.wikimedia.org/pipermail/wikimedia-l/2013-January/123598.html given https://www.wikidata.org/wiki/Q302817 et al.: if you're close to an affected family/friend, please let them know there are people like them who can really help.

Nemo