Dozens of children in one Indian state are reported to have died in the last two weeks from a little-understood brain disease linked to eating lychee fruits on an empty stomach.
The deaths were reported from two hospitals in Muzaffarpur in northeast India—known for its lush orchards of lychees.
Toxins in the fruit are believed to lower blood sugar levels by blocking the body’s production of sugar. If eaten in the evenings, they can cause blood sugar levels to drop to lethal levels when the effects combine with the natural fall in blood sugar that occurs during sleep.
However, the link between AES and lychees is also not fully understood.
The toxins in lychees are similar to those in the Jamacian fruit ackee, which causes the acute encephalopathy disease called Jamaican vomiting sickness (JVS).
The illness can lead to seizures, an altered mental state, and death in more than a third of all cases.
“Our investigation suggests an outbreak of acute encephalopathy in Muzaffarpur associated with both hypoglycin A and MCPG toxicity,” the report noted.
An earlier report in May 2014 noted that AES had also been observed in the lychee-growing regions of Bangladesh and Vietnam.
“Investigators in Vietnam believed that the disease was caused by some unknown virus, while in Bangladesh the disease was not thought to be infectious but was attributed to pesticides used in the orchards. Curiously, both these studies and the one from Muzaffarpur showed a positive correlation between the number of cases and amount of lychee harvest,” the report read.
According to the Telegraph, AES outbreaks have occurred in the area for over 20 years and is known as Chamki Bukhar.
The outbreaks typically occur during lychee season. However, the season also corresponds to the worst time for mosquitos.
According to Singh, most of the children who died at hospitals in Muzaffarpur had suffered a sudden drop in blood sugar.