Acceptability, feasibility, and ethics of saliva collection in community-based research with Mexican-origin mixed-status families during high immigration enforcement.

We recommend that researchers who obtain biospecimens from Latinx, Mexican-origin, and/or immigrant populations answer the participants' questions honestly and without fear that they will not understand the science to obtain voluntary assent and consent. We recommend that researchers be knowledgeable of the sociopolitical context that the Latinx, immigrant, and in particular, mixed-status families inhabit so that they are prepared to provide informational resources. Finally, we think it is imperative that the study team in the field be bilingual, multicultural Latinx persons who identify with the community.