Doctors said the virus generally recedes with a rise in temperatures and that should have happened in February itself, but the number of cases kept rising this year due to the transitional weather and unseasonal rainfall.
According to the latest Union Health Ministry data, 2,172 persons have succumbed to the disease while the number of persons affected across various states stands at 35,138.
He said that only 12 swine flu deaths have been reported in the national capital this year and, in almost all of the cases, the patients were suffering from co-morbid conditions, especially heart and respiratory diseases and diabetes.
"With the onset of summer, the number of patients visiting OPD every day has decreased significantly. Also, fewer swab samples are being sent to the testing laboratories. Now, when patients come, we administer them medicines and tell them to take precautions and enough rest," a senior AIIMS doctor said.
While 981 deaths were reported along with 27,236 cases of swine flu in 2009, the disease claimed the lives of 1,763 people in 2010 and affected around 21,000 people.
