mobile data collection devices

Sex workers, a stigmatized population, are also at risk for a host of sexually transmitted infections. As the marginalized women are typically reluctant to visit health clinics, mobile data collection devices are particularly useful to researchers and health workers dealing with this population.In Peru, outreach teams preventively treat the sex workers for infections with the medication metronidazole, in addition to screening them for chlamydia and other conditions. Metronidazole, however, causes headaches, nausea and abdominal pain in some patients. Since these side effects needed to be carefully monitored, the outreach teams had to track down sex workers in streets, bars, discotheques