Well, if you don't practise proper hygiene, it most definitely
is.
Scenario:
A kid who has gastric flu doesn't wash his hands properly after
going to the toilet. He places his hands on the table top.
Some other kids have their lunch later on the table.
You get the drift.
I myself came down with gastroenteritis a few weeks ago. It was
terrible - I lost really large amounts of water from combined
diarrhoea and vomitting. My weight dropped 2 kg in just 36
hours.
