The global seroprevalence of Toxoplasma gondii infection in bovines: a systematic review and meta-analysis

Shariatzadeh, S. A. and Sarvi, S. and Hosseini, S. A. and Sharif, M. and Gholami, S. and Pagheh, A. S. and Montazeri, F. and Nayeri, T. and Nakhaei, M. and Galeh, T. M. and Daryani, A.

Parasitology (2021) 148: 1417–1433

DOI: 10.1017/S0031182021001116

Abstract

Bovines, especially cattle, are considered as one of the main sources of Toxoplasma gondii infection for humans. A more comprehensive understanding of the occurrence of T. gondii is needed to provide a global perspective on the prevalence of T. gondii in bovines. Here, we present the results of the first systematic review and meta-analysis on the global T. gondii seroprevalence in bovines. Six databases (PubMed, ScienceDirect, Web of Science, Scopus, ProQuest and Google Scholar) were comprehensively searched for relevant studies published between 1 January 1967 and 30 May 2019. Among 7691 publications searched, 178 studies (from 50 countries) with 193 datasets were included in the meta-analysis. The global pooled and weighted seroprevalence of T. gondii among bovines was 17.91% [95% confidence interval (CI): 15.32-20.6]. Weighted prevalence based on the host was as follows: cattle 16.94% (95% CI: 14.25-19.81), buffalo 22.26% (95% CI: 16.8-29), yak 23% (95% CI: 14-33) and bison 8.1% (95% CI: 3.9-13.7). Continued monitoring on the status of T. gondii seroprevalence in bovines is essential. Study on the prevalence of T. gondii in the products of bovines such as milk, meat, etc., which are considered as the source of transmission of infection to humans, is recommended.

Citation

Shariatzadeh, S. A., Sarvi, S., Hosseini, S. A., Sharif, M., Gholami, S., Pagheh, A. S., Montazeri, F., Nayeri, T., Nakhaei, M., Galeh, T. M., & Daryani, A. (2021). The global seroprevalence of Toxoplasma gondii infection in bovines: a systematic review and meta-analysis. Parasitology, 148(12), 1417–1433. https://doi.org/10.1017/S0031182021001116 Bovidae, cattle, meta-analysis, man, systematic reviews, data analysis, disease prevalence, epidemiology, milk, world, worldwide, disease transmission, infections, parasites, parasitoses, protozoal infections, monitoring, animal diseases, Toxoplasma gondii, Protozoa, Toxoplasma, protozoal diseases, Bison, parasitic diseases, parasitic infestations, parasitosis, Protozoan, Helminth, Mollusc and Arthropod Parasites of Animals [LL822], seroprevalence

Keywords

• Bovidae
• cattle
• meta-analysis
• man
• systematic reviews
• data analysis
• disease prevalence
• epidemiology
• milk
• world
• worldwide
• disease transmission
• infections
• parasites
• parasitoses
• protozoal infections
• monitoring
• animal diseases
• Toxoplasma gondii
• Protozoa
• Toxoplasma
• protozoal diseases
• Bison
• parasitic diseases
• parasitic infestations
• parasitosis
• Protozoan
• Helminth
• Mollusc and Arthropod Parasites of Animals [LL822]
• seroprevalence