Just picked this news up.

"Three major cruise lines announced it will allow some passengers to change or cancel their cruises to countries where the Zika virus is active. Norwegian, Carnival and Royal Caribbean are among the cruise lines that will offer pregnant women rescheduling of their voyage for a future date or to change their cruise to a region that isn’t affected by the Zika virus." 

How many people do you think will reschedule their vacations?

I think the cruise lines are handling this appropriately.