2.3 Information sources and search methodology
A single reviewer consulted PubMed, CAB Abstracts, Virtual Health
Library (VHL), Science Direct, Scopus, and Web of Science from 24
February to 02 March 2020 to find scientific literature. To find the
most relevant and specific publications, the reviewer conducted
separated searches for each outcome (prevalence, serovars, and
antimicrobial resistance). For this, we defined a common search term for
the population [(salmonell* OR salmonella OR salmonellosis) AND (avian
OR poultry OR broiler OR laying hen OR fowl OR chick)] that was used
in conjunction with search terms for prevalence (prevalence OR
incidence), serovars (genotype OR serotyping OR serovar), and
antimicrobial resistance (resistance OR resistant). Full searches and
the number of recovered records for each database are presented inSupplementary Table 1 of the supplementary material. After
completing the searches, all the retrieved records were downloaded and
stored in a single library in EndNote x9 (Thompson Reuters, USA).