THE Health Ministry is concerned about the aftermath of the flood in the West, especially if water remains collected and stagnant in manmade receptacles.
Media liaison officer Evlyn Mani said this could increase the number of dengue positive cases.
"The ministry is also advising people to take the necessary precautions as flooding tends to bring in water-borne diseases such as leptospirosis, typhoid, rotavirus and even influenza and dengue fever," she said.
"Boiling all drinking water is also recommended."
Ms Mani urged the public to protect themselves from dengue mosquitoes by using mosquito repellents, mosquito nets and safe mosquito coils.
Meanwhile, strategies put in place over the past two weeks to reduce dengue cases appear to have controlled the outbreak.
Ms Mani said regular meetings with local authorities, municipal councils and stakeholders helped tackle the problem.
"Insecticide spraying was conducted in high-risk zones to destroy flying dengue mosquitoes and an anti-dengue clean-up campaign was launched to encourage source reduction.
"Currently, dengue positive cases from October 30 to January 24 at a national level stand at 1422.
"The Central Division has recorded 1208 cases, the Western Division 165 and the Northern Division 49."