Student population in Pune is about 2,00,000. Of these 7,000 are foreign students from over 40 countries. 

Students commute on two wheelers, most commonly mobikes & usually at high speed. 
Pune, unfortunately leads in the whole of Asia as regards accidents involving two wheelers. 

These students are usually single and often stay as paying guests or dine in hostel mess/hotels or eat by road side snack joints. 

Consequent to the above life style of eating unhygienic food outside and traveling by two wheelers, students frequently land up with medical problems either due to road traffic accidents or loose motions or may be as simple as high fever.