A recent study in Sierra Leone’s remote areas used mobile vaccination teams and community mobilization to improve COVID-19 vaccine access. Conducted in 150 communities, the intervention increased immunization rates by 26 percentage points within 48-72 hours and doubled the number of vaccinations at community points. The cost was US $33 per person vaccinated, with significant expenses for transportation. The study suggests combining multiple health interventions in these visits to reduce costs and highlights the effectiveness of mobile services in improving health service uptake in remote areas.