RT Journal Article T1 Unusual double erythrocyte infection by heterogeneric parasites in the lacertid lizard Psammodromus algirus A1 Megia Palma, Rodrigo Manuel A1 Blázquez Castro, Sara A1 Barrientos Yuste, Rafael AB The observation reported here is noteworthy because it represents a rare case of double heterogeneric (co)infection in a single host erythrocyte. The low frequency of these observations in the sample suggests that the co-occurrence of one Schellackia sporozoite and one Karyolysus gametocyte within a single host erythrocyte would not benefit either the parasites or the host. We conclude that it represents a stochastic event of single host cell coinfection. PB Societas Europaea Herpetologica SN 2071-5773 YR 2023 FD 2023 LK https://hdl.handle.net/20.500.14352/112694 UL https://hdl.handle.net/20.500.14352/112694 LA eng NO Funding:RM-P enjoys a postdoctoral contract (CEECIND/04084/2017) provided by the Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto and Fundação da Ciência e Tecnologia. SB-C holds a contract by CAM and NextGenerationEU Funds (27-UAH-INV). NO European Commission NO Comunidad de Madrid NO Instituto de Ciências, Tecnologias e Agroambiente da Universidade do Porto NO Fundação para a Ciência e a Tecnologia (Portugal) DS Docta Complutense RD 27 abr 2025