Roxana:
Kindly explain what the "tragedy" was that "earlier this year took place in Chile at the salmon factories" I do not believe there was any human error.
The southern Pacific waters on Chile's coast are awash with a virulent,pervasive and lethal microbe.
This has been the cause of their abundant use of antibiotics to fight this toxic algae bloom.I am not aware of any other "tragedy".
Unfortunately,this abundant albeit necessary use of antibiotics has caused considerable alarm in their main customers and they have had a bad 2015 and '16.
They had a similar problem in 2007 and it took them 5 years to come back in 2012 (see Food Safety News,Ross Anderson,April 30,2012)
They have lost many customers to Norway as a result.In my view,Mother Nature has dealt them a nasty problem which is not easy to handle
If you feel that the quality of Chilean salmon was always low, you are free to think that.
However,to their credit Chilean entrepreneurial.spirit had bulit that industry from scratch to become the world's 2nd salmon exporter which is no small achievement.