Gomez-Martin, MLozano, CLuque, RLuque-Romero, LRodriguez-Benjumeda, LAznar-Martin, J2023-02-082023-02-082020-03-26Gómez-Martín M, Lozano C, Luque R, Luque-Romero L, Rodríguez-Benjumeda L, Aznar-Martin J. Red swamp crayfish collecting: a risk activity for leptospirosis. Clin Microbiol Infect. 2020 Aug;26(8):1103-1104.http://hdl.handle.net/10668/15301Leptospirosis , commonly known as ‘ rat fever ’, is a worldwide zoonotic illness caused by the Leptospira genus [1,2]. Isla Mayor is a municipality in Seville, Spain , with a total population of 5911 inhabitants; it is surrounded by over 24 000 hectares of rice fields. It forms part of the Doñana National Park ecosystem , an area protected for its biodiversity , where no chemical substances may be used which might harm this natural environment . An increase in the rat population associated with the richness of the ecosystem and limitations on the use of biocides have made Isla Mayor a perfect breeding ground for Leptospira infection among wetland workers , especially rice labourers and collectors of red swamp crayfish ( Procambarus clarkii).enAntibodies, BacterialHumansMaleRisk FactorsSeroepidemiologic StudiesAnimalsAstacoideaFemaleLeptospiraLeptospirosisOccupational ExposureRatsShellfishSpainletter to the Editor32224201Restricted AccessLeptospiraEcosistemaDesinfectantesInfeccionesBiodiversidadParques recreativos10.1016/j.cmi.2020.03.0091469-0691http://www.clinicalmicrobiologyandinfection.com/article/S1198743X20301518/pdf