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