Epidemiology and Surveillance Unit in Dominica

The Epidemiology and Surveillance Unit in Dominica serves as the country’s primary disease-monitoring and outbreak-response division within the Ministry of Health, Wellness and Social Services. Its role extends across communicable disease tracking, outbreak investigations, vaccination monitoring, mortality analysis, laboratory coordination, and public health reporting.

Although the unit often operates quietly in the background of the public health system, its influence becomes highly visible during national health events such as dengue outbreaks, COVID-19 surges, foodborne illness investigations, and regional public health alerts. Through continuous reporting from hospitals, health centres, clinics, and laboratories, the unit helps determine how diseases spread across Dominica and what response measures may be required.

In a small island state with a population estimated at roughly 66,000 to 72,000 across different census periods, even moderate increases in disease can place significant pressure on healthcare services. A cluster involving only a few dozen patients in one district may represent a serious epidemiological concern compared with larger countries where similar figures could go unnoticed.

Institutional Mandate and Governance

The National Epidemiological Unit executes its core responsibilities under the statutory authority of the Ministry of Health, led by the National Epidemiologist. The unit is legally and operationally integrated with the primary and secondary healthcare delivery platforms, ensuring that notifications from local health clinics are systematically captured in the central ministry database.

Key administrative responsibilities include:

• Syndromic Surveillance: Near real-time monitoring of clinical symptoms recorded across the island’s 52 peripheral health centres to identify early signs of localized outbreaks before definitive laboratory confirmation is complete.
• Sentinel Surveillance: Targeted monitoring of high-priority conditions at designated facilities. This includes Severe Acute Respiratory Infections (SARI), which are monitored directly at the Dominica China Friendship Hospital (DCFH) in Roseau.
• International Health Regulations Compliance: Ensuring that public health events of potential international concern are detected, analyzed, and reported to global bodies in compliance with the International Health Regulations (IHR 2005).

Digital Health Infrastructure and the DHIS2 Platform

The national public health intelligence network relies on a modernized electronic infrastructure powered by the District Health Information Software 2 (DHIS2) platform. Implemented via technical cooperation agreements with the Pan American Health Organization (PAHO) under sub-regional health security initiatives, this cloud-based platform replaces paper-based registries with a centralized, real-time data repository.

The DHIS2 infrastructure serves as a secure digital dashboard that links data-entry terminals across all 52 community wellness clinics and specialised hospital wards. This network enables data clerks, laboratory technologists, and District Medical Officers (DMOs) within major medical jurisdictions, including the Roseau, Grand Bay, St. Joseph, and Portsmouth health districts, to input diagnostic indicators simultaneously. This automated environment eliminates reporting delays, maintains the digital National Immunisation Registry, and maps epidemiological curves to optimise the deployment of pharmaceutical interventions during seasonal disease surges.

The One Health Integration Strategy

Operating within a tropical ecosystem vulnerable to climate shocks and ecological shifts, the unit forms a critical pillar of Dominica’s One Health Approach. This framework eliminates institutional silos by linking human health data managed by the Epidemiology and Surveillance Unit with environmental and veterinary data from the Ministry of Agriculture’s Livestock Development & Veterinary Unit. This cross-sectoral integration enables predictive epidemiology and rapid, localised response to climate-linked and zoonotic infections, such as Leptospirosis, following heavy rainfall and flooding events.

National Health Data and Surveillance Indicators

The Epidemiology and Surveillance Unit monitors long-term demographic, communicable, and non-communicable disease data to steer national healthcare planning. According to data validated by the World Health Organization (WHO) and PAHO, the unit’s baseline parameters reflect the following structural health profile:

Demographic and Economic Context

• Total Population: Estimated at 73,040 inhabitants, representing a 6.9% increase from the 2000 baseline of 68,346.
• Life Expectancy: Positioned at 74.2 years at birth.
• Healthcare Expenditure: Public expenditure on health accounts for approximately 6.3% of national Gross Domestic Product (GDP), equating to an annual per capita spending of $968.

Surveillance and Disease Burden Profiles