What causes death from dengue? What symptoms to watch out for?

A 48-year old builder in Ahmedabad died on August 10 of what is suspected to be dengue haemorrhagic fever (DHF). A death audit is on but if confirmed, it would be the first death due to DHF in Ahmedabad this year. According to the WHO, a patient enters what is called the critical phase normally about 3-7 days after illness onset. During the 24-48 hours of critical phase, a small portion of patients may manifest sudden deterioration of…