As the Commonwealth Games commences on Sunday, the national capital continued to grapple with dengue outbreak with cases of the vector-borne disease reaching 3,468 after 85 more patients tested positive on Saturday.

With two more dengue deaths reported on Friday the toll in the city has reached seven this season.

South Delhi continued to be the worst-affected with 483 cases, followed by Civil Lines (442), Rohini (399) and Central Zone (389).

The civic bodies are attributing the rapid increase in dengue cases this season to prolonged monsoon and stagnation of water at Commonwealth Games construction sites.

The dengue outbreak has also raised concern among several countries which are sending teams to participate in the Games to be held here from Sunday.

India has issued a health advisory for participants and visitors coming for the event asking them to take precautions like carrying full-sleeve clothes and bringing mosquito repellent creams, oils, mats or coils.

The government has sought to play down concerns over dengue during the Games saying the prevalent variant of the mosquito-borne disease was not very dangerous.