text: what are some harmful habits and infectious disease preventions? what are some harmful habits or choices people use that has an impact on the wellness of their well being?how can we help? simple example: hiv infection will have a negative impact on your health.  negative health behaviors associated with hiv transmission include: 1. unprotected sexual contact 2. injection drug use  yes, many people choose to have sex with multiple partners and not use condoms. this obviously puts them at risk for getting hiv. you can prevent hiv transmission by encouraging condom use and educating people about the dangers of hiv as well as methods for preventing it.  there are people who shoot drugs and get hiv. you can curb this as well by either getting more people into rehab, or by offering clean needle exchanges.  so that's how the process works: you locate a health problem, determine its impace, find routes of exposure and you try to cut risk factors.