A meta‐analysis of the global prevalence of methicillin‐resistantStaphylococcus aureus(MRSA) isolated from clinical and subclinical bovine mastitis

AIMS: This meta-analysis aims to assess the point prevalence of methicillin-resistant Staphylococcus aureus (MRSA) isolated from bovine mastitis cases at the global level. METHODS AND RESULTS: = 97·48%, p < 0·001). In the subgroup analysis by region, the highest prevalence was found in Asia (6·47%, 95% CI: 4·33-8·97), and the lowest prevalence was reported in Europe (1·18%, 95% CI: 0·18-2·83). The pooled prevalence was significantly higher in clinical mastitis and cases published during 2016-2020. CONCLUSIONS: The results of this study suggest that there is a lower prevalence of MRSA in bovine mastitis. However, its prevalence increased in the past 4 years. Therefore, continuous surveillance is urgently required for monitoring the dissemination of these clinically important bacteria. SIGNIFICANCE OF THE STUDY: To our knowledge, this is the first meta-analysis to estimate the global prevalence of MRSA isolated from bovine mastitis cases.