The county health department is investigating what public health officials suspect is the first ever locally transmitted case of dengue, the tropical disease that has recently seen an uptick in transmission nationwide.

The illness appeared in an Escondido resident who had not recently traveled anywhere that the mosquito-borne illness is common. The arrival of dengue in San Diego County does not come as a surprise,

The San Diego County Health Department is investigating the first-ever case of locally acquired dengue fever after an Escondido resident fell ill without a recent history of travel to endemic areas.

San Diego County health officials Sunday reported their first case of locally acquired dengue virus, contracted by an Escondido resident.

San Diego County confirms first locally acquired dengue fever case; vector control responds with targeted mosquito spraying.