Case Report: Re-Emergence of Cochliomyia hominivorax in Costa Rica: Report of a Human Myiasis Case 23 Years after Elimination.

ABSTRACT: The New World screwworm, Cochliomyia hominivorax Coquerel (Diptera: Calliphoridae), was officially eliminated from Costa Rica in 2000, but it was reintroduced in 2023. A myiasis by C. hominivorax in a 71-year-old man with a 4-month history of foot hyperkeratosis and interdigital ulcers is reported. The myiasis was detected before sampling for bacterial culture. Approximately 160 first- and second-instar larvae were recovered and identified as C. hominivorax. Morphological identification was based mainly on characteristics of the cephalopharyngeal skeleton, spiracles, and pigmented dorsal tracheal trunks. Sequencing of a cytochrome c oxidase subunit I gene fragment confirmed the identity. The ulcers healed after extraction of the larvae and ciprofloxacin treatment of a concurrent Staphyloco

SUBMITTER: Venegas-Montero DP 

PROVIDER: S-EPMC11542512 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature