My cruise was on the Jade, in Asia, in early Feb., just after the Japan breakout. I canceled, and thankfully, since the cruise couldn’t go to its main country, Vietnam. Didn’t get anything back nor expect it, since cruising was considered safe by the (bought off) ‘experts’. Ended up getting off cheap since our cabins were inside (no windows and certainly no balcony). Got most of the airfare back, so overall loss wasn’t bad. Others have much bigger losses - their best option is to quickly sue, while the companies are solvent.
Because of the cruise cancellation problems, there is a cottage industry of advice for cruise people - like don't pay by check, use a credit card- Get a certain type of trip insurance etc. Times certainly are changing. -Tom