11.   The smoke from huge areas of burning forest drifts over neighboring Malaysia, blocking out the sun and causing respiratory disorders.

12.   They repeatedly noted that symptoms of asthma, a serious respiratory disorder, are frequently mistaken for a simple allergy.

13.   Thousands of survivors still suffer from a variety of ailments, including dizziness, fatigue, chest congestion, eye irritation and serious respiratory disorders.

14.   Thousands of survivors of the disaster still suffer from a variety of ailments, including dizziness, fatigue, chest congestion, eye irritation and serious respiratory disorders.