Principal Secretary, health department, Deepak Kumar said an American team of experts, led by Jacob John, besides another one from Delhi is investigating the exact reason behind the deaths of children.
According to doctors, the acute encephalitis Syndrome is a severe case of encephalitis characterised by inflammation of the brain. Mosquitoes transmit the infection, resulting in high fever among the children.
"Every year, encephalitis hits Muzaffarpur, Gaya and other neighbouring districts in May or June. But this year, it seems to have struck a little late," a health department official said.