Hi doctor Recently I and couple of my friends went out on a trip to a town nearby (for a day) and we ate out in some local restaurants. It turns out, on our return each one of us have symptoms of diarrohea and nauseousness , loss of appetite in various degrees. I guess I was least affected (atleast I think so) , however my other friend is suffering from typhoid now. Can you please suggest if this is because of some bug or bacteria. Is it out of our systems (people like me who are eating and feeling hungry as well up to some extent) ? What precaution can we take?