Magali ChabéVincent HerbreteauJean Pierre HugotBouzard NoemiLucie DeruyterMorand SergeEduardo Dei-CasUniversite Lille 2 Droit et SanteInstitut Pasteur LilleTerritoires, Environnement, Teledetection et Information SpatialeMahidol UniversityMuseum National d'Histoire NaturelleUniversite de MontpellierCentre Hospitalier Regional Universitaire de Lille2018-09-242018-09-242010-03-01Journal of Eukaryotic Microbiology. Vol.57, No.2 (2010), 213-21715507408106652342-s2.0-77952595858https://repository.li.mahidol.ac.th/handle/20.500.14594/29265This work reports for the first time the presence of two Pneumocystis species in wild Rattus norvegicus specimens from Thailand. Pneumocystis DNA was detected in 57.7% (15/26) wild rats without apparent association with typical pneumocystosis. Pneumocystis carinii was found alone in five rats (19.2%), Pneumocystis wakefieldiae was detected alone in six rats (23.1%), and two rats were infected by both species (7.7%). In addition, a new P. wakefieldiae variant sequence has been identified in three wild R. norvegicus specimens caught in the same geographical area. The high frequency of Pneumocystis in wild rats documented in this study and the apparent scarcity of severe pneumocystosis were consistent with an efficient circulation of rat Pneumocystis species in ecosystems. © 2010 The Author(s).Mahidol UniversityImmunology and MicrobiologyArticleSCOPUS10.1111/j.1550-7408.2009.00465.x