Bottom 20%, 5 times top 20% disease ecology we are major enineers of viral traffic but are unaware of it pathways: e. g. dengue mouse moves into homes they carried dieses population density. Resistance in some places, virus once its gone its done only in small pox in russian and american laps social construction of cancer focus on: smoking diet exercise personality questions about cancer how much do lifestyle factors predict. Chemical soup china cancer villages aids as novel like white bread aids seen as general threat contagious risk factors seen as more controllable( but blood transmission) power aids activists young, educated. Microbes are on a rampage mirobes are smarter than us: aids hides in your body we engineer microbial traffic by our own activities instant distant infections flights waiting for the next plague mutation contagion not create grass root panic as such! aim to use fear to create sense of urgency often little response.