Table 3. Overview of surveillance gaps in assessing data available for priority populations.

Priority population	Data gap	Proposed gap-filling strategy
Cases under 17 years of age	Denominator data	Hospital-level linkage of IMPACT centres with CIHI
	Non-medically attended RSV infection data	None proposed
Cases in Indigenous and remote communities	Incidence, prevalence or specific risk factor data	Surveillance pilot projects may clarify the burden of disease, acceptability and feasibility of vaccine programs in these at-risk communities
Cases in older adults	Incidence, prevalence, strain or specific risk factor data	Retrospective cohort study of laboratory-confirmed RSV by CIRN-SOS Prospective surveillance through a sentinel surveillance network

Abbreviations: CIHI, Canadian Institute for Health Information; CIRN-SOS, Canadian Immunization Research Network Severe Outcome Surveillance; IMPACT, Immunization Monitoring Program ACTive; RSV, respiratory syncytial virus