Dengue cases in the city climbed to 140 today after 19 more people tested positive for the virus.

"19 new patients tested positive for dengue fever. A total of 140 people have tested positive for dengue this season," MCD municipal health officer NK Yadav said.

Yadav said that the dengue cases reported at this time of the year was more in comparison to the corresponding period last year.

"Rains, Commonwealth Games and increased surveillance is the result of the increased number of cases being reported this year," Yadav said.

Municipal authorities have issued challans to many residents and organisations for breeding of mosquitoes in their premises.