Atiq Khan LUCKNOW: The dance of death continues in the eastern districts (Purvanchal region) of Uttar Pradesh. The dreaded acute encephalitis syndrome (AES) has so far killed 199. The victims are mostly children and people below the poverty line. This comes at a time when the Japanese Encephalitis (JE) appears to have been contained by the SA-14-14-2 vaccine imported from China. Threat perception The threat perception of the AES is more serious owing to the nature of its virus and the fact that it has not been identified. In many cases, the disease was identified after the patient died. What is known is that the AES virus is water-borne and enters the victim