Swine flu fever has gripped the nation and the death toll in the national capital has risen to nine after three more deaths were reported on Friday. According to the Directorate of Health Services (DHS) two patients aged 69 and 51 years succumbed to the viral disease Thursday in central Delhi's B.L. Kapoor hospital and west Delhi's Sri Balaji Action Medical Institute respectively. Read how to prevent the spread of HINI. 'The point of concern is that while the 69-year-old admitted at B.L. Kapoor was also suffering from blood cancer the other patient aged 51 was suffering from heart ailment.