(FILES) This undated handout photo obtained on February 16, 2023 courtesy of EurekAlert shows Mating tsetse flies. On January 29, 2025, the World Health Organization (WHO) declared that Guinea has successfully eliminated sleeping sickness, or the gambiense form of Human African Trypanosomiasis (HAT), as a public health problem. (Photo by Geoffrey Attardo / EUREKALERT! / AFP) / RESTRICTED TO EDITORIAL USE - MANDATORY CREDIT "AFP PHOTO / Geoffrey Attardo / EUREKALERT " - NO MARKETING - NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS (Photo by GEOFFREY ATTARDO/EUREKALERT!/AFP via Getty Images)