Many of my colleagues pooh-pooh my concerns about Influenza. They just don't believe it. And these are educated physicians! Given many of them are liberal and believe FEMA will protect them and all that, but even so you would expect a nod from other physicians about the threat, given the history of the Great Pandemic of 1916-1918.
Our family knows the value of OPSEC. We just don't discuss our preparations, especially as to Influenza. My wife, a Nurse by the way, and I already monitor world influenza cases, and have email alerts regarding influenza.
One thing we have done that others may find helpful is to have pre-determined sentinel events for keeping our children home from school and implementing quarantine. Our quarantine triggers involve cases in adjoining states, a pattern of progressive number of cases, and so on. Our triggers may not fit yours, so research the data as to your local situation and prayerfully make a decision.