From January 1 to February 1, 1,854 samples were tested, of which 629 samples were found to be positive. The number of deaths due to swine flu and other complications is 31, an official release said.
As many as 35 samples of the total 118 samples tested yesterday were found to be positive, it said.
The government, however, said the number of positive cases reported in the last six days till yesterday is showing a declining trend.