After visiting Saudi Arabia and India a woman became ill within 1 week of her return to Durban. Dengue type 1 virus was isolated from acute-phase serum, and antibody seroconversion was demonstrated. This is the first case of dengue fever in the RSA since the 1926-1927 epidemic. The occurrence of this case, and 2 further suspected cases, emphasises the need for vigilance if another epidemic is to be avoided.
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