Officials with the Zamboanga City Health Office (CHO) report 524 total cases of dengue fever since the beginning of the year, including seven deaths.
Health officials say most of the cases are in children under 10 years of age.
Barangays (villages) recorded the most cases in the city include Mercedes (37), Putik and Boalan (20 each), Guiwan (19), and Culianan and Lunzuran with 18 each.
Nationally, the Philippines has reported 31,549 total dengue cases in the first quarter of 2023, a 73 percent increase over the 18,191 cases recorded during the same period last year.
To date, 99 dengue fatalities have been reported in the country.
According to the US CDC, dengue is a disease caused by a virus spread through mosquito bites. The disease can take up to 2 weeks to develop with illness generally lasting less than a week.
Health effects from dengue include fever, headache, nausea, vomiting, rash, muscle and joint pain, and minor bleeding.
Dengue can become severe within a few hours. Severe dengue is a medical emergency, usually requiring hospitalization.
In severe cases, health effects can include hemorrhage (uncontrolled bleeding), shock (seriously low blood pressure), organ failure, and death.
The Philippines is one of eight countries in Asia that the CDC has issued a travel notice due to dengue.