B.Delgermaa, chief officer of the Infectious Disease Outbreak Department of the General Emergency Authority, has indicated that the recent cases of food poisoning in Bulgan province’s secondary school No.1 could have been caused by chemicals. This is being considered likely that the affected children and teachers did not show the usual symptoms of food poisoning caused by organic substances.

Laboratory tests of samples of the food served are still being made in UB. A working group investigating the incident has found that the cakes were made in a bakery which worked in an extremely poor hygienic environment.

Altogether 143 children and seven teachers were taken ill on March 19, according to latest reports. Of the, 87 percent have fully recovered.