The investigators will recruit and follow a randomly-chosen sample of NYCHA public housing residents in the proposed target community who meet multiple criteria for being considered vulnerable or underserved. The current study will address knowledge gaps regarding COVID-19 testing, treatment, and household prevention strategies, and generate new knowledge related to the epidemiology of COVID-19 in these communities. Working with community partners, the investigators will create an acceptable and feasible intervention and testing infrastructure in advance of the influenza season, with a view toward designing best practices for sustainable COVID-19 testing, prevention, and preparedness for vaccination trials. The investigators will implement a 2-arm RCT that will evaluate the effectiveness of the Nurse-CHW-Family Partnership Intervention in promoting COVID testing uptake, adoption of COVID control measures, and household mutual aid capacity. The investigators will recruit members of randomly selected households in their homes using area sampling methods used with excellent results in the investigators' previous research in the target community. Participants will complete a baseline assessment and the entire household will be randomized to either the experimental or a treatment-as-usual control condition, which will be used to measure actual testing rates among public housing residents in relation to participant and household characteristics. The baseline sample will include 150 households, and 400 individual household members, randomized in a 2:1 ratio, intervention:control. Families will complete follow-up assessments at 6 and 9 months following the baseline. In-home testing and referral to seasonal influenza vaccination services will be offered to the intervention group; whereas the control group will receive treatment as usual at multiple NYC Department of Health COVID-19 testing sites that are within walking distance of each of the three housing complexes. Test acceptance will be recorded, and incentives will be paid for study visits, not for testing.