DHAKA, Sept. 21 (Xinhua) -- The number of confirmed dengue cases in Bangladesh has surpassed the 12,000 mark this year as 438 new cases were confirmed in the 24 hours till 8:00 a.m. local time Tuesday, the biggest daily jump since January.

Bangladesh has witnessed a significant spike in dengue cases this month, with 5,826 cases and 24 deaths registered, the Directorate General of Health Services (DGHS) said.

In August, 3,521 more dengue cases were recorded after 1,571 people were infected with the mosquito-borne disease in July, according to the figure reported by the DGHS under the Ministry of Health.

By region, Dhaka and its neighboring districts are vulnerable to the risk of mosquito-borne diseases, according to the DGHS, with 315 dengue cases reported in Dhaka in the 24 hours till 8:00 a.m. local time Tuesday.

The fresh infection tally indicates the fast-rising trend of the mosquito-borne disease in the Bangladeshi capital city.