Here's an easy opportunity to lead. Develop an iron-clad flu vaccination policy, and require your employees to get vaccinated unless they have a legitimate religious or medical exemption.
To many, it once did. But in today's healthcare environment, we're supposed to be about putting patients first. If a particular treatment proves more efficacious than another, or more efficacious than no treatment at all, it should be implemented outside any countervailing evidence.
The only reason requiring flu vaccination is perceived as different is that it involves medical treatment for the people providing the healthcare, whereas, in most cases, it deals with the people who are receiving it.
That's not a good enough reason not to do this.