"In early May, Japan quarantined 47 airline passengers in a hotel for a week
after three travelers who arrived on the same plane from Canada tested positive
for H1N1 swine flu."
http://en.wikipedia.org/wiki/2009_flu_pandemic
Japan is in the top 10 for numbers of confirmed cases of H1N1 (with 1790), but
has zero deaths (unlike all the other top 10 nations).