Table 1.

Eligibility criteria and search strings for investigating the prevalence or the seroprevalence of swine influenza A virus (swIAV) for domestic pigs in South Korea.

	Inclusion criteria	Exclusion criteria
Population	• Domestic pigs in South Korea	• Other animals except pigs • Other country • Wild animals
Outcomes	• Prevalence of swine Influenza A virus • Seroprevalence of antibodies of swine Influenza A virus • Isolation rate of swine Influenza A virus	• Experimental results from isolated virus • Genomic analysis
Study type	• Cross-sectional studies	• Ecological studies • Descriptive observational studies • Case-control studies • Cohort studies Reviews
Search strings

(porcine OR swine OR pig or pigs OR piglet OR piglets OR gilt OR gilts OR sow OR sows OR hog OR hogs OR weaner OR finisher OR finishers) AND (Korea*) AND (avian influenza* OR swine influenza OR AI OR bird flu OR avian flu OR influenza A virus) AND (prevalence OR inciden* OR proportion OR cases OR surveillance OR seroprevalence).