Cambodia: Elevated dengue fever activity reported nationwide through June

Event

Health authorities have reported elevated dengue fever activity nationwide in Cambodia, with more than 4,660 suspected cases reported from Jan. 1-June 26. This is 1.6 times higher than the 2,869 cases reported over a similar period in 2022. Areas reporting the highest number of cases include the Banteay Meanchey, Kandal, Siem Reap, and Tboung Khmum provinces, and the capital of Phnom Penh. The Cambodian Ministry of Health distributed equipment like mosquito nets and mosquito repellent to prevent and control the spread of dengue fever. This represents the most complete information available as of July 7.

Context

Dengue fever is a nationwide and year-round threat in Cambodia; however, transmission is typically highest June-November when environmental conditions are ideal for mosquito breeding. Cambodia reported roughly 12,591 dengue fever cases nationwide in 2022, 1,811 cases in 2021, 11,977 cases in 2020, and 65,000 cases in 2019.

A dengue fever vaccine is available in some countries. It is only recommended for individuals with a history of dengue infection and in countries with high dengue fever burdens. Dengue fever is transmitted through the bite of an infected mosquito. Symptoms of dengue fever include a sudden onset of fever and at least one of the following: a severe headache, severe pain behind the eyes, muscle and joint pain, rash, easy bruising, and/or nose or gum bleeding. Symptoms typically appear 5-7 days after being bitten but can develop up to 10 days after exposure. Dengue fever can progress to a more severe form known as dengue hemorrhagic fever (DHF). DHF can be fatal if it is not recognized and treated promptly.

Advice

If you have previously been infected with dengue fever, consult with your physician regarding vaccination. Avoid mosquito bites and remove standing water to reduce the number of biting mosquitoes. Seek medical attention if symptoms develop within two weeks of being in affected areas. Do not use aspirin or ibuprofen products if dengue fever is suspected, as these could exacerbate bleeding tendencies associated with the disease.