"The CDC and FDA say that the most likely cause is often contaminated food or water."
"The determination of exactly what caused the initial onset of the
sickness and caused it to spread is a scientific / medical process."
"Only scientific analysis from educated, trained and experienced epidemiologists will get to the bottom of the problem."
Read more from Cruise Law news at :
Why Cruise Lines Want the Cause of Norovirus Outbreaks to Remain a Mystery : Cruise Law News