A systematic review and meta-analysis of the prevalence of Listeria monocytogenes in livestock and poultry in China

Abstract

ObjectiveTo understand the epidemic characteristics of Listeria monocytogenes （L. monocytogenes） from livestock and poultry in China， the contamination and prevalence of L. monocytogenes in livestock and poultry food in China was systematically reviewed via a meta-analysis. The findings can provide data that can help in the prevention and control of L. monocytogenes during the production of livestock and poultry meat.MethodsThe relevant literature on the detection rate of L. monocytogenes in livestock and poultry food published from 2001 to 2022 in China was searched by inputting key search terms on PubMed， Web of Science， Wanfang Database， CNKI， and other data platforms. The meta-analysis was performed using Stata software.ResultsA total of 277 Chinese and English research articles were selected， representing a total of 110 066 samples and a combined L. monocytogenes detection rate of 7.2% （95%CI： 6.4%-8.0%）. The subgroup analysis of different regions showed that the detection rates of this pathogen in Jilin and Heilongjiang were higher than that of other regions. The subgroup analysis of different time periods found that the detection rate of L. monocytogenes decreased with the extension of time. The detection rate of L. monocytogenes in cooked meat （2.9%， 95%CI： 2.4%-3.5%） was much lower than that in raw meat （10.7%， 95%CI： 9.5%-12.0%）， and the detection rate in poultry meat and pork was 11.0% （95%CI： 8.3%-14.0%） and 10.9% （95%CI： 7.9%-14.2%）， respectively， which was slightly higher than that in other types of raw meat.ConclusionThe detection rate of L. monocytogenes in livestock and poultry food is still at a relatively high level in China.

Keywords

• livestock and poultry meat in china
• listeria monocytogenes
• prevalence
• meta-analysis