According to the Hanoi Centre for Disease Control (CDC), the city recorded 316 dengue cases across 74 wards and communes between August 7 and 14, along with 11 new outbreaks. This was up from 235 cases the previous week.
So far this year, Hanoi has recorded 1,598 dengue cases across 115 wards and communes.
Disease prevention workers inspect household water containers for mosquito larvae.
The Hanoi CDC said infections were rising in line with the disease's annual cycle. The return of pupils and students to the capital, coupled with unsettled weather, could further increase transmission in the coming weeks.
Recent hot, humid and rainy weather has fuelled mosquito breeding, prompting Hanoi to step up dengue control measures.
Dao Thi Hang, a resident of Phu Nghia Commune, recently returned home after spending seven days in hospital with dengue. Four cases have been reported in her village.
Hang said she had since cleared potential mosquito breeding sites around her home, removed unnecessary containers, cut back overgrown vegetation and encouraged neighbouring households to do the same.
Local health workers have urged residents to use mosquito nets, clear drains and remove standing water, while spraying mosquito-control chemicals in high-risk areas.
Early detection, rapid response
Dao Huu Than, deputy director of the Hanoi CDC, said health authorities were continuing to monitor active dengue outbreaks and had instructed local health stations to step up preventive measures in high-risk areas.
These include environmental clean-up campaigns, eliminating mosquito larvae, targeted spraying, public awareness campaigns and rapid containment of newly detected cases and outbreaks.
Than urged households to spend at least 10 minutes each week checking and eliminating mosquito breeding sites, including cleaning and covering water tanks and removing standing water.
He also encouraged eligible residents to consider dengue vaccination and cooperate with local authorities during mosquito-control campaigns.
