If you are worried about swine flu (and an epidemiologist told me today “we should all be concerned”) I can tell you that though the virus is serious prevention is pretty basic.  For now, take commonsense precautions. Cover your coughs and sneezes, with a tissue that you throw away or by sneezing into your elbow rather than your hand. Wash hands frequently; if soap and water aren’t available, hand gels can substitute. Stay home if you’re sick and keep children home from school if they are.