**2. Role of Mobile clinics in health delivery systems**

Mobile clinics are vehicles customized with medical equipment to provide health services in communities for different health populations. They are staffed with health professionals to increase health access to populations and enforce disease prevention, as well as improve access to chronic health management at reduced costs [1]. Mobile clinics have also been used to increase healthcare staff and provide specialty equipment such as orthoses and prostheses to disabled patients in Sao Paulo [2]. In situations such as flooding when building facilities were destroyed or individuals were unable to access stationary healthcare facilities, mobile clinics were alternatives to providing adequate medical services as was in the case in Malaysia [3]. These examples illustrate how mobile clinics can provide the healthcare needs of populations similarly to stationary healthcare facilities, and addresses geographical barriers by bringing the care to patients. Additionally, a study on patient satisfaction for preventive services in Saudi Arabia showed that patients were satisfied with the working hours and human resources of the mobile clinics 95% of the time, while in northern Nigeria, [4] there were positive perceptions of mobile clinics by providers, community leaders and patients [5].

Mobile health clinics have been used in the United States to provide healthcare services to the uninsured or individuals lacking geographic access to health [6]. They continue to be longstanding community-based service delivery models that fill gaps in healthcare delivery safety-nets and reach under-resourced populations in both urban and rural areas [1]. Their effectiveness could potentially increase should they be used together with other forms of healthcare services delivery for coordinated health management. There are about 2,000 mobile clinics in the United States serving 7 million at-risk people annually [5, 7]. The mobile clinic model is an efficient avenue for healthcare delivery (\$36 saved from mobile clinic services compared to emergency visits for every \$1 invested in the mobile clinic) [8]. "They work in some places where the economics make sense, and where the technology can survive the bumpy roads" [9].
