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Meta-Analysis
. 2020 Feb 17;13(1):82.
doi: 10.1186/s13071-020-3954-1.

The global serological prevalence of Toxoplasma gondii in felids during the last five decades (1967-2017): a systematic review and meta-analysis

Affiliations
Meta-Analysis

The global serological prevalence of Toxoplasma gondii in felids during the last five decades (1967-2017): a systematic review and meta-analysis

Mahbobeh Montazeri et al. Parasit Vectors. .

Abstract

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.

Keywords: Domestic cat; Meta-analysis; Serology; Toxoplasma gondii; Wild cat.

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Conflict of interest statement

The authors declare that they have no competing interests.

Figures

Fig. 1
Fig. 1
PRISMA chart of the study design process
Fig. 2
Fig. 2
Worldwide Toxoplasma gondii seroprevalence in domestic cats and wild felids from different continents. Data are reported as mean (range)
Fig. 3
Fig. 3
Forest plot for the seroprevalence of Toxoplasma gondii in wild Felidae in different countries
Fig. 4
Fig. 4
Forest plots for the seroprevalence of Toxoplasma gondii in male (a) and female (b) wild felids

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