Table 1.

Description of universal and customized screening strategies.

Screening strategy	Policy-maker’s decision
No screening	None
Universal screening	The common screening frequency
Screening population customization	Which vaccination categories to screen (unvaccinated, vaccinated, boosted)
	The common screening frequency for the screening population
Screening population and frequency customization	Which vaccination categories to screen (unvaccinated, vaccinated, boosted)
	A screening frequency for each vaccination category included in screening
Full customization	Which vaccination categories (unvaccinated, vaccinated, boosted) and groups (faculty versus students) to screen
	A screening frequency for each vaccination category & group (faculty versus students) included in screening