I reach out to people about job opportunities almost every day. I would say I hear back from 25% of them. But yesterday, when Mayor Bloomberg advised us all to work from home, I heard back from 100%!
Even folks that weren't interested in the position I contacted them about had a moment to recognize that it might make sense to get back to a recruiter. Or maybe they had time to take a breath and exercise the common courtesy of getting back to someone.