When germs are your job

One moment Dr. Ernest Brown might be in a stale hotel room handing tissues to someone with the flu, and the next he could be telling folks at a homeless shelter to open up and say, “ah.” In other words, he hardly lives in a bubble of sterility. Still, the house call doctor in the District of Columbia hasn’t been “full-blown knocked out” by illness in about five years. “Considering how many sick patients I see, my immunity is quite high,” he says. And while he and others with robust immune systems take appropriate precautions like washing their hands frequently and getting the recommended vaccinations, some also credit these tricks for keeping illness at bay.

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8 Secrets of People Who Don’t Get Sick originally appeared on usnews.com