2.1 Protocol and objectives
A protocol, available from the corresponding author upon reasonable
request, was developed a priori in accordance to the Preferred
Reporting Items for Systematic reviews and Meta-analysis Protocol
(PRISMA-P) statement (Moher et al., 2015). The study was conducted
according to the Cochrane handbook for systematics reviews (Higgins et
al., 2019) and it is reported in agreement with the PRISMA statement
(Liberati et al., 2009). We conducted a systematic review and
meta-analysis to address the following questions: What is the prevalence
of NTS in samples of poultry from the Americas? Which are the main
serovars of NTS identified in each type of sample? What is the
prevalence and profile of antimicrobial resistance in NTS isolates of
poultry?