Table 2.

Actions taken and information collected during case investigation

	BTN	KHM	CHN	IDN	MYS	NPL	PHL	KOR	SLB	LKA	THA	VUT	VNM
Conduct case investigations	●	●	●	●	●	●	●	●	●	●	●	●	●
Visit the index case	●	●	●	●	●		●	●	●	●	●	●	●
Retest index case	●		●	●				●	●		●	●	●
Supervise treatment	●	●	●	●	●		●	●	●	●	●	●	●
Follow up on adherence to treatment	●	●		●	●		●	●		●	●	●	●
Check prevention measures used	●	●		●	●	●	●	●	●	●	●	●	●
Educate individual on risk factors & prevention	●	●		●	●		●	●	●	●	●	●
Collect information on anti-malarial medicines in use		●		●	●	●		●		●	●
Map location of residence of index case		●	●	●	●		●	●		●	●	●
Collect information on travel history	●	●	●	●	●	●	●	●	●	●	●	●	●
Travel within district to malarious areas	●	●	●	●	●		●	●	●	●	●	●
Travel outside district	●	●	●	●	●		●	●	●	●	●	●	●
Travel outside country	●	●	●	●	●	●	●	●	●	●	●	●	●
Number of days upon return from travel until symptom onset	●	●		●	●		●	●	●	●	●	●	●
Collect information on recent contact with travelers/ immigrants			●	●	●	●	●	●		●	●	●
Collect information on history of G6PD deficiency				●			●				●

For Solomon Islands and Vanuatu, the activities apply only to subnational elimination provinces.

Legend: Country abbreviations: Bhutan: BTN; Cambodia: KHM; China: CHN; Indonesia: IDN; Malaysia: MYS; Nepal: NPL; Philippines: PHL; Republic of Korea: KOR; Solomon Islands: SLB; Sri Lanka: LKA; Thailand: THA; Vanuatu: VUT; Vietnam: VNM.