Impact of Non-Pharmaceutical Interventions on URIs and Influenza in Crowded, Urban Households:
2010
Objectives.We compared the impact of three household interventions—education, education with alcohol-based hand sanitizer, and education with hand sanitizer and face masks—on incidence and secondary transmission of upper respiratory infections (URIs) and influenza, knowledge of transmission of URIs, and vaccination rates.Methods.A total of 509 primarily Hispanic households participated. Participants reported symptoms twice weekly, and nasal swabs were collected from those with an influenza-like illness (ILI). Households were followed for up to 19 months and home visits were made at least every two months.Results.We recorded 5,034 URIs, of which 669 cases reported ILIs and 78 were laboratory-confirmed cases of influenza. Demographic factors significantly associated with infection rates included age, gender, birth location, education, and employment. The Hand Sanitizer group was significantly more likely to report that no household member had symptoms (p<0.01), but there were no significant differences in r...
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