Scalable Strategies to Increase Efficiency and Augment Public Health Activities During Epidemic Peaks.

OBJECTIVE: Scalable strategies to reduce the time burden and increase contact tracing efficiency are crucial during early waves and peaks of infectious transmission. DESIGN: We enrolled a cohort of SARS-CoV-2-positive seed cases into a peer recruitment study testing social network methodology and a novel electronic platform to increase contact tracing efficiency. SETTING: Index cases were recruited from an academic medical center and requested to recruit their local social contacts for enrollment and SARS-CoV-2 testing. PARTICIPANTS: A total of 509 adult participants enrolled over 19 months (384 seed cases and 125 social peers). INTERVENTION: Participants completed a survey and were then eligible to recruit their social contacts with unique "coupons" for enrollment. Peer participants were eligible for SARS-CoV-2 and respiratory pathogen screening. MAIN OUTCOME MEASURES: The main outcome measures were the percentage of tests administered through the study that identified new SARS-CoV-2 cases, the feasibility of deploying the platform and the peer recruitment strategy, the perceived acceptability of the platform and the peer recruitment strategy, and the scalability of both during pandemic peaks. RESULTS: After development and deployment, few human resources were needed to maintain the platform and enroll participants, regardless of peaks. Platform acceptability was high. Percent positivity tracked with other testing programs in the area. CONCLUSIONS: An electronic platform may be a suitable tool to augment public health contact tracing activities by allowing participants to select an online platform for contact tracing rather than sitting for an interview.

Targeted Strategies for Recruitment and Engagement of Latinx Immigrants in Longitudinal Biobehavioral Research.

Introduction: Racial/ethnic minority communities are underrepresented in research. Medical mistrust and mistreatment, discrimination, and a lack of diverse research workforce may influence recruitment and engagement. Engaging Latinx immigrants for research presents unique recruitment challenges, especially for biobehavioral research which is not well explored. The purpose of this paper is to examine the effect of targeted strategies for recruiting young adult, Latinx immigrants. Methods: Recruitment occurred from 2018 to 2019 in an ongoing, longitudinal, community-engaged research study examining risk and resilience factors for health outcomes in Latinx immigrants. Strategies included active recruitment (e.g., community-based events and public events) and passive recruitment (e.g., word-of-mouth and radio and flyer advertisements). Logistic regression analysis was conducted to examine the influence of type of recruitment on participant enrollment. Results: The study enrolled 391 participants of 701 interested individuals (55%). Greater odds of enrollment were among participants recruited through radio and flyer advertisements (adjusted odds ratio [AOR]=2.90, 95%CI [1.59, 5.27], p=.001), word-of-mouth (AOR=2.50, 95% CI [1.55, 4.03], p<.000), or community-based organization events (AOR=1.68, 95% CI [1.19, 2.38], p=.003). Conclusions: Passive recruitment strategies through trusted sources increased the odds of enrollment of Latinx immigrants in biobehavioral research. Future recruitment efforts should leverage trusted sources to disseminate recruitment materials addressing barriers to recruiting Latinx participants for research.