Table 1.

Strategies adopted by the University Hospital of Palermo to increase influenza vaccination coverages among health care workers (HCWs) in the last four influenza seasons.

Influenza Seasons	Strategies Adopted
	Pins Distribution	“Flu Vaccination” Day	Posters and Flyers in Hospital Units	“Social Media” and Web Campaign	“On-Site” Vaccination	Mandatory Compilation of Dissent form
2015/2016	X			X	X
2016/2017		X	X	X	X	X
2017/2018		X	X	X	X	X
2018/2019			X	X	X	X