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Forest plot of seroprevalence of C. burnetii among abattoirs and slaughterhouse workers in 19 included studies stratified by outbreak status. Note: CFT = Complement Fixation Test, IFA = Immunofluorescence Assay, and ELISA = Enzyme-Linked Immunosorbent Assay. Also, ES(95% CI) refers to the seroprevalence point estimate (ES) with 95% CI. P = p-value and I2 describes the percentage of total variation across studies that is due to heterogeneity rather than chance.
