A hunt for answers as children fall sick around Lake Chapala

Eduardo Baltazar is the youngest person in the tiny Mexican village of Agua Caliente to have a kidney transplant, undergoing the life-saving surgery a month shy of his 13th birthday.

The boy is one of many victims of a health crisis in the western state of Jalisco that environmental experts are linking to water and air pollution, despite denials by the government.

A University of Guadalajara investigation into the 950 residents of Agua Caliente on the shores of Lake Chapala has confirmed what locals have known for years - chronic kidney disease has reached epidemic levels and is hitting children . . .