Related Experiment Video
Updated: Jun 20, 2025

Large-Scale SARS-CoV-2 Testing Utilizing Saliva and Transposition Sample Pooling
Published on: June 23, 2022
Reaching Structurally Vulnerable Populations Using Low-Barrier COVID-19 Testing Clinics Co-Created with
David N Ngandu1, Gloria D Sclar1, Ambia Ahmed1
1MaineHealth Institute for Research, Scarborough, ME, USA.
Community partnerships effectively provided COVID-19 testing to vulnerable populations. Low-barrier walk-up clinics reached unhoused, immigrant, and low-income individuals, improving access to vital health services.
Area of Science:
- Public Health
- Health Equity
- Community-Based Research
Background:
- The COVID-19 pandemic highlighted health disparities, disproportionately impacting structurally vulnerable communities.
- A critical need existed to enhance COVID-19 testing accessibility within these underserved populations to curb viral transmission and facilitate treatment access.
Purpose of the Study:
- To evaluate the effectiveness of a partnership between an academic medical center and community-based organizations (CBOs) in reaching structurally vulnerable populations.
- To assess whether co-created, low-barrier COVID-19 walk-up testing clinics successfully served target demographics in Portland, Maine.
Main Methods:
- COVID-19 rapid antigen testing was offered three times weekly at CBO sites from January 2022 to May 2023.
- A brief survey on testing reasons was administered, followed by a demographic and perception survey after self-swabbing.
- Outreach specifically targeted unhoused individuals, immigrants, and those with low income and/or lacking insurance.
Main Results:
- Out of 246 completed tests, 7% were positive for COVID-19.
- Participants tested primarily due to symptoms (60%), close contact (29%), or to access services (33%).
- The clinics successfully reached vulnerable groups: 39% unhoused, 22% non-English speakers, 23% uninsured, and 46% earning under $20,000.
Conclusions:
- Collaborative, low-barrier walk-up testing clinics in partnership with trusted CBOs are effective in reaching structurally vulnerable populations.
- This model facilitated access to COVID-19 testing for hard-to-reach community members.
- Building trust through CBO collaboration was key to engaging target populations.
More Related Videos
Related Concept Videos
Community Based Intervention
Foundations of Community Mental Health Programs
Central to the success of community-based interventions is the...
Specialized Care Centers and Settings-II
Rural health centers are specialized care facilities in remote locations with very few medical personnel. The primary care providers who run the centers are mostly Registered Nurse Practitioners. Here, emergency treatment is provided to critically ill or injured patients before they are transferred to the closest hospital. Fortunately, due to advancement in technology, many rural healthcare facilities and professionals have easy access to diagnostic and treatment...
Specialized Care Centers and Settings-I
Daycare centers
They provide several functions. Some facilities care for healthy newborns and children whose parents work, while others are medically focused and care for...
Primary Healthcare Services
In 1978, international leaders convened in Alma-Ata, Kazakhstan, for what would be a pivotal event in global health. The Alma-Ata Declaration was the first to call...
Methods Of Healthcare Delivery System
Managed Care System:
The managed care system is designed to control the cost while maintaining the quality of care. The patient's care from admission to discharge is planned by the primary care provider or the case manager, also known as the gatekeeper. In a managed care system, the number of care providers is...
Healthcare Associated Infections II: Preventive Measures
The best practices for preventing healthcare-associated infections include hand hygiene, patient risk...

