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Background Felids (domestic and wild cats) are important in the epidemiology of the parasite Toxoplasma gondii because they are the only hosts that can excrete the environmentally resistant oocysts. We conducted a systematic review and meta-analysis to estimate the global prevalence of T. gondii in species of the family Felidae. Methods We searched seven databases (PubMed, Embase, Google Scholar, ScienceDirect, Scopus, Proquest and Web of Science) for studies reporting seroprevalence of T. gondii in felids from 1967 to 31 December 2017. A total of 217 published papers, containing 223 datasets were eligible for inclusion in the meta-analysis, comprised 59,517 domestic and 2733 wild cats from 1967 to 2017. Results The pooled global T. gondii seroprevalence was estimated to be 35% (95% CI: 32–38%) and 59% (95% CI: 56–63%) in domestic cats and wild felids, respectively, using random effects model. The seroprevalence was higher in Australia and Africa where the T. gondii seropositivity in domestic cats was 52% (95% CI: 15–89%) and 51% (95% CI: 20–81%), respectively. The lowest seroprevalence was estimated in Asia 27% (95% CI: 24–30%). The seroprevalence values for T. gondii in wild felids were 74% (95% CI: 62–83%) in Africa, 67% (95% CI: 23–111%) in Asia, 67% (95% CI: 58–75%) in Europe and 66% (95% CI: 41–91%) in South America. Conclusions Our study provides the global prevalence of T. gondii in species of the family Felidae and is a source of information to aid public health workers in developing prevention plans.

[EN] The main objectives of the project were 1) to determine whether supplementary feeding had a positive effect on reproduction of the Iberian lynx, 2) the development of non-invasive techniques for the mon- itoring of lynx populations, 3) the study of distribution and abundance of domestic and generalist carnivores of the Doñana National Park (PND) using primarily census tracksurveys, and 4) to evaluate the effectiveness of campaigns to control the red fox population as usually performed within PND, also using tracksurveys. Litter size in the Doñana lynx population during the study period was lower than that observed years ago despite the supplementary feeding program. The simultaneous use of came- ras and genetic analysis of faecal DNA was useful to track the population of resident lynx. The red fox was the most widely distributed species, followed closely by Egyptian mongooses and European bad- gers. The other species of carnivores were always detected in less than 50% of the sampled shrubland area. Most cats detected in the PND were wild cats, and a lower domestic. Finally, the populations of foxes did not appear to respond to the control campaigns of the PND. In addition, detailed monitoring of 2 foxes tracked with GPS collars showed that a single individual can cross on average 10 times 1 km of road inside the PND., [ES] Los objetivos principales del proyecto fueron 1) determinar si la alimentación suplementaria tenía efec- tos positivos sobre la reproducción del lince ibérico, 2) la puesta a punto de métodos no invasivos de seguimiento de las poblaciones de linces, 3) el estudio de la distribución y abundancia de carnívoros domésticos y generalistas en todo el Parque Nacional de Doñana (PND) usando principalmente cen- sos de huellas, y 4) evaluar la efectividad de las campañas de control de la población de zorros tal y como se realizaban habitualmente dentro del PND también usando censos de huellas. El tamaño de ca- mada en la población de linces de Doñana durante el periodo de estudio fue menor de lo observado años atrás a pesar del programa de alimentación suplementaria. El uso simultáneo de cámaras foto- gráficas y análisis genéticos de ADN en excrementos fue útil para hacer un seguimiento de la pobla- ción de linces residentes. El zorro fue la especie de más amplia distribución en el PND, seguido de cerca por meloncillos y tejones. Las otras especies de carnívoros fueron siempre detectadas en menos del 50% de la superficie de matorral muestreada. Los gatos detectados en el PND fueron fundamen- talmente monteses y en menor proporción domésticos. Finalmente, las poblaciones de zorros no pare- cieron responder a las campañas de extracción realizadas por personal del PND. Además, el seguimiento detallado de 2 zorros con collares GPS mostró que un único ejemplar puede cruzar en pro- medio hasta 10 veces 1 km de camino del PND