Cruise-ship outbreaks get the media coverage, but the real keys for keeping the bug under control are more robust hand-hygiene rules and better sick-leave procedures for restaurant workers.

Students, parents and teaches attending an annual dinner at Willow Ridge CC in Harrison, N.Y. fell ill over the next five days. The club’s facility has been cleaned and allowed to reopen by the local health department; school buildings were also sanitized.

Early signs of activity for the 2011 season are showing progress back towards pre-recession levels, clubs in Connecticut and New York reported. But corporations are still taking a more conservative, value-conscious approach.