Mystery illness in Cambodia solved?

I'm not sure that this is very comforting news but the World Health Organization has determined that a combination of pathogens -- disease-causing micro-organisms -- caused the recent deaths of Cambodian children. The WHO reached the conclusion in conjunction with the Cambodian Ministry of Health, CNN says. Inappropriate use of steroids, which can suppress the immune system, made the illness worse in a majority of the patients, doctors told CNN. The pathogens include enterovirus 71, which is known to cause neurological disease; streptococcus suis, which can cause infections like bacterial meningitis in people who have close contact with pigs or with pork products; and dengue, which is transmitted by mosquitoes.
http://www.cnn.com/2012/07/10/world/asia/cambodia-children-disease/index.html