A study by the United Nations children’s agency (Unicef) has revealed the sorry state of sanitation in Bangladesh’s schools.
Published in the capital, Dhaka, the study says in some cases, nearly 500 students share one school latrine.

The government says it is trying to improve the situation and that universal school sanitation will be achieved within the next five years.
The study surveyed nearly 4,500 schools across the country, officials said.
According to the Unicef study, Bangladesh averages one latrine to 152 pupils.
But in one of the worst cases, 479 students share only one school latrine. The study says the world average is 20 to 30 students per latrine.

http://news.bbc.co.uk/2/hi/south_asia/4667466.stm