Strengthening public health surveillance

THE SURGE in acute gastroenteritis (AGE) and hand, foot, and mouth disease (HFMD) in Iloilo City has brought to the forefront a matter that cannot be ignored — timely detection and coordinated response through effective public health surveillance systems. As reported by the Iloilo City Epidemiology and Surveillance Unit (ICESU), there have been 84 cases of AGE and 44 cases of HFMD as of April 9, 2025 — marked increases from last year’s 51 and 20 cases, respectively. This sharp spike in cases emphasizes the importance of robust, proactive surveillance systems to detect health threats early and prevent further spread.

In the face of this health challenge, the city’s response has centered on enhanced community surveillance and an urgent push for early detection. Health officials are working around the clock, collaborating with barangays and schools to monitor the situation, educate residents, and distribute health materials. However, while these efforts are commendable, they are not enough to fully mitigate the risks posed by diseases like AGE and HFMD. More must be done to strengthen Iloilo City’s public health surveillance systems to ensure that the spread is contained before they escalate into widespread public health emergencies.

A well-functioning public health surveillance system is essential for the early identification of potential health threats. The ability to track disease trends in real time allows local health authorities to allocate resources effectively, identify at-risk populations, and implement preventive measures promptly. In the case of AGE, which primarily affects young male children aged one to 10 years old, with 19 cases already reported, the city needs to focus on high-risk areas, particularly in districts such as Arevalo, which has recorded 36 AGE cases to date. Likewise, with HFMD predominantly affecting children in Mandurriao and Arevalo, the need for targeted interventions in these areas is crucial.

The City Health Office has already taken steps to bolster monitoring efforts in neighborhoods with rising case numbers, which is a necessary response to the mounting health threat. owever, existing systems need further investment. Going beyond mobilizing health workers and setting up monitoring teams across districts, the city government should explore integrating advanced technology, improving data collection methods, and ensuring that health information is shared quickly and accurately between barangays, the City Health Office, and the general public.

Enhancing real-time data reporting tools could enable quicker identification of unusual spikes in disease incidence, allowing for faster mobilization of response teams and resources. Additionally, collaboration with community-based organizations could be expanded to include a broader public health education campaign, ensuring that every resident is aware of proper hygiene protocols and how to prevent the spread of AGE and HFMD. As Dr. Jan Reygine Ansino-Hortinela, Medical Officer III of ICESU, pointed out, the quicker the response, the better the chances of containing these diseases before they spread further.

The experiences of Iloilo City over the past few weeks offer valuable lessons on the importance of early detection, effective response, and coordinated action in managing public health crises. By investing in these, we can protect the health of our community and reduce the likelihood of future outbreaks. When it comes to public health, an ounce of prevention is worth a pound of cure.

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