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Dengue surveillance in Texas, 1995

J A Rawlings¹, K A Hendricks, C R Burgess

¹Infectious Disease Epidemiology and Surveillance Division and Bureau of Laboratories, Texas Department of Health, Austin 78756-3199, USA.

The American Journal of Tropical Medicine and Hygiene

|July 31, 1998

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Dengue epidemics in nearby regions prompted increased surveillance in Texas in 1995. Seven locally acquired dengue cases were detected in southern Texas, indicating potential local transmission.

Area of Science:

Public Health
Infectious Diseases
Epidemiology

Background:

Dengue epidemics were prevalent in the Caribbean, Central, and South America, including Mexico.
The proximity of these epidemics raised concerns about potential dengue introduction into Texas in 1995.

Purpose of the Study:

To assess the risk of dengue transmission in Texas due to regional epidemics.
To implement surveillance and educational measures to detect and prevent dengue cases.

Main Methods:

Distributed medical and community educational materials.
Initiated active surveillance for dengue cases statewide.
Tested sera from over 360 patients for anti-dengue antibodies.

Main Results:

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Twenty-nine dengue cases were detected across Texas.
Seven of the detected dengue cases were confirmed as locally acquired in southern Texas.

Conclusions:

The findings confirmed the occurrence of locally acquired dengue in Texas in 1995.
The study highlighted the importance of active surveillance and public health preparedness for dengue in endemic regions.