Role of public-private partnerships in achieving UNAIDS HIV treatment targets
Despite progress towards achieving UNAIDS 90–90-90 goals, barriers persist in laboratory systems in sub-Saharan Africa (SSA) restricting scale up of early infant diagnosis (EID) and viral load (VL) test monitoring of patients on antiretroviral therapy. If these facilities and system challenges persist, they may undermine recorded gains and appropriate management of patients. The aim of this review is to identify Public Private Partnerships (PPP) in SSA that have resolved systemic barriers within the VL and EID treatment cascade and demonstrated impact in the scale up of VL and EID.
We queried five HIV and TB laboratory databases from 2007 to 2017 for studies related to laboratory system strengthening and PPP. We identified, screened and included PPPs that demonstrated evidence in alleviating known system level barriers to scale up national VL and EID testing programs. PPPs that improved associated systems from the point of viral load test request to the use of the test result for patient management were deemed eligible.
We identified six PPPs collaborations with multiple activities in select countries that are contributing to address challenges to scale up national viral load programs. One of the six PPPs reached 14.5 million patients in remote communities and transported up to 400,000 specimens in a year. Another PPP enabled an unprecedented 94% of specimens to reach national laboratory through improved sample referral network and enabled a cost savings of 62%. Also PPPs reduced cost of reagents and enabled 300,000 tested infants to be enrolled in care as well as reduced turnaround time of reporting results by 50%.
Our review identified the benefits, enabling factors, and associated challenges for public and private sectors to engage in PPPs. PPP contributions to laboratory systems strengthening are a model and present opportunities that can be leveraged to strengthen systems to achieve the UNAIDS 90–90-90 treatment targets for HIV/AIDS. Despite growing emphasis on engaging the private sector as a critical partner to address global disease burden, PPPs that specifically strengthen laboratories, the cornerstone of public health programs, remain largely untapped.
KeywordsPublic-private partnership Viral load Early infant diagnosis Laboratory systems strengthening Cascade
The Joint United Nations Programme on HIV/AIDS (UNAIDS) fast track treatment targets call for 90% of people living with HIV infection to know their status; 90% of those who know their status to receive antiretroviral therapy (ART); and 90% of those on ART to achieve viral suppression by 2020 . Despite significant progress towards controlling the HIV/AIDS pandemic , these new targets have overwhelmed many public health laboratory systems in sub-Saharan Africa (SSA) due to increased demand for early Infant diagnostic (EID) testing of HIV-exposed infants (HEI) and viral load (VL) test monitoring of patients on ART . The VL and EID cascade is characterized by phases from the point of test request to the use of the test results for patient management. There are three phases and include the pre-analytical phase defined as the period from collection of specimens at the referral clinic to receipt of specimens in the laboratory (includes demand creation for testing from care providers and patients, specimen collection and processing, specimen transport system), the analytical phase defined as the period from testing of specimens to obtaining results at the laboratory (includes quality laboratory testing and supply chain management for test reagents and supplies), and the post-analytical phase which entails results transmission from laboratory to receipt of results at the referral clinic and use for patient management (comprised of result reporting to clinics, interpretation and uptake for patient management). Monitoring and evaluation (M&E) is cross-cutting through the different phases and allows monitoring of progress of these phases.
Multiple barriers within the VL and EID cascade prevent optimal access and uptake of test results for better patient management. In the pre-analytical phase, these barriers include lack of patient awareness for available HIV test; non-standardized specimen collection practices, and weak specimen referral networks . In the analytical phase, challenges include frequent equipment breakdown, weak supply chain systems, and unsafe biological waste management. In the post analytical phase, the challenges experienced comprise delayed and inconsistent delivery of test results, limited data systems for reporting results, and poor clinician utilization of laboratory results for improved patient management. There is also a dearth of adequate numbers of competent workforce along all phases of the cascade [4, 5, 6].
In 2009 leaders of the US Government’s global AIDS program stated that “The problems we face today will be solved not by governments alone but in partnerships; partnerships with philanthropy, global business and civil societies” . While global PPPs that have improved public health programs such as Global Fund, Foundation for Innovative New Diagnostics, and the Global Alliance for Vaccines and Immunizations (GAVI), have been around for decades , PPPs that specifically target the advancement of laboratories, an indispensable component of these programs, are rare. The gap persist despite the increasing emphasis on engaging the private sector as a critical partner to improve services and systems to address diseases that are threats to public health [8, 9, 10, 11]. One of the reasons for engagement of fewer than anticipated private entities could be the paucity of empirical data and strategies for effective private sector engagement .
Studies suggests that the influx of donor funding has led to decreased private contributions for HIV/AIDS. The reduction in private sector investment and engagement raises concerns about the sustainability of HIV/AIDS programs, particularly in light of the current global economic crisis and emerging competing priorities . There exist opportunities for partnerships to strengthen systems in the VL and EID cascade and address gaps to accelerate achieving the UNAIDS 90–90-90 goals. SSA countries are at different stages of scaling up VL and EID and have varying challenges . Partnerships, especially PPP can play an important role in resolving system barriers affecting VL and EID. In this review, we identify and provide a description of PPPs in SSA that have been used to resolve systemic barriers within the cascade and demonstrated its impact in the scale up of VL and EID.
Data sources and search strategy
We queried five HIV and TB laboratory databases (Medline, Embase, CINAHL, Global Health, Scopus) from 2007 to 2017, with an aim to identify public-private partnerships focused on laboratory system strengthening. We used search terms Public-Private Sector Partnerships, private public partnership, public private partnership, laboratory or specimen handling, specimen transport, specimen referral, sample transport, laboratory quality management, laboratory worker or laboratory technician. Only articles published in English were included.
Outcomes of interest and data abstraction strategy
Our search yielded 375 records in EndNoteX7 library, and eight from non-peer reviewed sources bringing our total to 383 records (Fig. 2). Using Endnote’s “find duplicates” function we removed 128 duplicates. We systematically assessed each record by evaluating the following broad questions: 1) Was there a clear study objective that addressed barriers to scale up VL and EID testing in record? 2) Did the study use the right methods to address the study objective? 3) Are the results of the study valid? 4) Are the results applicable to my population of interest? Of the 255 remaining articles, 225 records were removed because of their focus on non-healthcare PPPs. We tabulated characteristics of the remaining 30 PPPs by ability of the PPP to address barriers in the various phases of VL and EID cascade, country of operation, name of PPP, start year, intervention type, impact and source using MS Office Excel spreadsheet. Eleven of the 30 abstracts unrelated to laboratory system strengthening were excluded and leaving 19 full text articles for review. Thirteen of the 19 articles provided valuable insights into various modes and interpretations of operationalizing PPPs, benefits and challenges, enabling factors, reasons for dearth of PPPs in global health care. We referenced these 13 articles in introduction and other sections in the manuscript. Six PPP records that met the eligibility criteria were reviewed and analyzed.
Pioneering PPPs focused on laboratory system strengthening
Summary of Public-Private Partnerships (PPPs) (2007–2017) that address barriers and strengthen laboratory systems in resource-limited settings to improve access, coverage, quality and utilization of Viral Load and Early Infant Diagnosis testing
Poor and non-standardized specimen collection procedures.
• Trained 91 HCW on safe phlebotomy collection practices.
• Increased knowledge of phlebotomists by 41%.
• Integration of safe phlebotomy practices into pre-service training.
Kimani et.al., 
Weak supply chain and unreliable specimen transportation system.
Gambia, Kenya, Lesotho, Malawi, Nigeria, Zambia, Zimbabwe.
Riders for Health
• Accessed hard-to- reach communities for healthcare needs by providing motorcycles for transportation.
• Trained healthcare workers on managing supply chain distribution of medicines, transportation of specimens and return of results and managed emergency referrals.
• Improved access to 14.5 million people to healthcare.
• Transported 400, 000 specimens/year between laboratory and healthcare facilities.
World Bank 
Weak specimen transportation system.
• Use of GIS to map efficient sample referral network.
• Provided standardized specimen transportation materials.
• Training of transporters to safely package and transport specimens.
• Ten-fold increase in referrals of patients sample with presumptive MDR-TB.
• 94% specimens reached the national laboratory within the established target time of 72 h.
Joloba et al., 
Lack of skilled workforce, modern laboratory infrastructure to provide timely and accurate services to patients.
Global Access Program
• Engaged manufacturer and negotiated lower prices for HIV VL and EID reagents.
• 300, 000 infants enrolled into care and treatment.
• Provided 900,000 tests for EID.
• – Projected anticipated cost savings of $150 million in next 5 years.
Roche Diagnostics 
Turn Key Laboratory
• Set up‘Turn Key Laboratory’ for access to pediatric testing.
• 900,000 tests were made available.
• 100 laboratories in SSA now routinely offer PCR for EID.
Roche Diagnostics 
• Establishment of national laboratory quality assurance program to facilitate stepwise quality improvement of laboratory services.
• Trained and mentorship resulted in 18 MOH qualified auditors and 28 manager/quality officers capacitated to manage improvements of laboratories and steer towards accreditation.
Skaggs et al., 
• Built and modernized 23 regional-level laboratories,
• Built outpatient center at the national hospital serving 1000 patients/day.
• Provided mentorship.
• 10 fold increase (from 110,000 to 1,158,000) in test volumes in 5 years.
• Improved healthcare services for people living with HIV and other chronic diseases across the country.
Abbott Fund 
Post - analytical phase
Delayed and inconsistent delivery of VL and EID test results to patients.
• Used GIS to map and network 554 clinic facilities to laboratories testing for VL, EID, CD4 and hematology.
• Procured 400 standard specimen transportation containers.
• Trained 586 and 81 laboratory and postal workers, respectively.
• 50% reduction in TAT (from specimen collection to reporting results) for ART patients (10 to 5 days).
• Standardized training module used for training in all the regions
• 62% in cost savings for transporting EID specimens.
• Reduced TAT from 1 to 2 months to 5–10 days.
Kebede et al., 
Kiyaga et al. 
Kenya, Tanzania and Rwanda
Phones for Health
• Allowed input of health data and transfer to central database.
• Enabled ordering medicines, sending alerts and download of guidelines.
• Enabled access to training materials.
• Facilitated transmission of results to SMS printers.
• Improved access to knowledge and information of 50,000 community health workers.
• Reduced TAT for results delivery
• Effective monitoring of mother-to-child transmission through EID systems rolled out to 63 sites nationally.
Labs for Life (L4L) strengthened access to ART by building standardized in-country capacity for specimen collection, referral and result reporting systems. With operations in Uganda, Ethiopia, Mozambique, South Africa, Kenya and India, BD deployed experts to provide in-country training (Fig. 1 and Table 1).
Roche has three PPPs designated for the VL and EID programs. In 2008, only 15% of HEI in SSA were accessing EID services during the first two months of life . Roche Diagnostics responded to this critical service gap with a PPP agreement with UNITAID and the Clinton HIV/AIDS Initiative (CHAI). Roche provided molecular diagnostics supplies and set up ‘Turn Key Laboratories’, to provide timely HIV testing for the pediatric population . In 2012, Roche and PEPFAR partnered to create capacity for a well-trained laboratory cadre offering didactic courses at the Roche Scientific Campus (RSC) in Johannesburg, South Africa. In 2014, Roche signed another landmark PPP, known as the Global Access Program, which negotiated and lowered the price of VL tests in low- and middle-income countries (Fig. 1 and Table 1).
Stronger Together is a five-year PPP that was signed in 2014 between PEPFAR and Siemens Healthineers, the new brand name of Siemens Healthcare company. The goal of ‘Stronger Together’ was to develop a competent laboratory workforce globally through a virtual education platform on social media .
Abbott Fund, a global healthcare company, demonstrated a unique example of a locally operated PPP in Tanzania in response to the growing HIV epidemic to rapidly scale up HIV care and treatment activities. In 2001, Ministry of Health and Social Welfare (MOHSW) signed a PPP with Abbott Fund for expanded access to health care and to strengthen laboratory infrastructure  and system capacity (Fig. 1 and Table 1).
Riders for Health PPP was established 25 years ago in the United Kingdom, and continues now to be managed out of Africa  to address lack of access to health care among residents in remote communities in seven countries. Riders for Health managed a fleet of 1300 motor cycles and a variety of four wheeled vehicles in harsh conditions with little infrastructure to connect vital health care with rural areas hitherto unreachable except on foot .
Phones for Health PPP was initiated in 2007 with operations in countries including Kenya, Tanzania, and Rwanda, leveraging over $3 million annually . Utilizing mobile phone technologies or mHealth as tools and platforms for health research and healthcare delivery . It is a PPP between the health care software provider Voxiva, the phone producer Motorola, the telecom company MTN, the GSMA Development Fund, PEPFAR, CDC Foundation and Accenture Development Partnerships.
Impact of PPPs addressing barriers to scale up HIV viral load and early infant diagnostic testing
Demand creation for testing: In 2014, when Global Access Program lowered the price of VL testing by 40% thereby increasing its affordability and availability, it was projected that this PPP will save more than $150 million in costs over the next 5 years .
Specimen collection and processing: L4L PPP made significant progress in improving blood draw practices by developing and institutionalized a curriculum for phlebotomists to standardize safe blood-drawing procedures in Kenya. Following the initial curriculum training, the average knowledge increase was 41% for phlebotomists , which they went on to apply in their practices.
Specimen transport system: In 2007, Uganda’s effort to control the spread of the deadly Multidrug-Resistant Tuberculosis (MDR-TB) was severely limited by weak laboratory network coupled with inadequate specimen referral and result reporting system. L4L PPP collaborated with Ugandan Ministry of Health (MOH), CDC and local partners to use geographic information system (GIS) technology to map and strengthen a national specimen referral system . This resulted in 94% of specimens reaching the national laboratory within the established target time of 72 h. This model later served as the cornerstone for the EID specimen transportation and result reporting system and generated a cost savings of 62% and reduced average turnaround time from 1 to 2 months to 5–10 days . Riders for Health transported 400,000 blood and sputum samples between laboratories and health centers every year and improved access to healthcare for 14.5 million people in Gambia, Kenya, Lesotho, Malawi, Nigeria, Zambia, Zimbabwe [15, 28].
Laboratory testing: Roche’s PPP for “Turn Key Laboratory” introduced a paradigm shift for expanding laboratory services for pediatric HIV patients resulting in 900,000 tests being made available, an increase of 300,000 infants enrolled into care and treatment, and Polymerase Chain Reaction (PCR) testing being routinely provided in more than 100 laboratories .
L4L PPP has also played a significant role in strengthening Continuous Quality Improvement (CQI) of laboratories in several SSA countries including Mozambique, Kenya, Ethiopia, India. In a joint collaboration, L4L helped MOH Mozambique program by providing training and mentorship that resulted in 18 MOH qualified auditors and 28 manager/quality officers capacitated to establish a national laboratory quality assurance program .
In collaboration with CDC Tanzania and partners such as Design 4 Others and the Association of Public Health Laboratories, the Abbott Fund’s PPP contributed $10 million to building and strengthening a network of 23 regional-level laboratories in Tanzania . These laboratories provided support for 120 district hospital laboratories resulting in improved healthcare services. Abbott Fund provided mentoring, technical support, and expertise in the areas of construction, engineering, infection control, waste management, information technology, and laboratory management . This PPP also built a modern outpatient center at the Muhimbili National Hospital serving over 1000 patients a day for HIV and non-communicable ailments and the system strengthening efforts increased by 10 fold laboratory tests volumes .
Post analytical phase
Result reporting and interpretation by clinicians: From 2010 to 2012, L4L, MOH and CDC partnership in Ethiopia reduced the turnaround time of laboratory patient results by 50% from 10 to 5 days  in 554 (59%) of the 944 districts. The program has demonstrated sustainable expansion covering 800 (85%) of the 944 districts as of 2017 and transports specimens for CD4, EID, chemistry, hematology and TB tests, independent of the PPP.
Phones for Health PPP enabled health workers to input health data and transfer them to a central database, order medicines, send alerts, download guidelines, and access training materials. In Rwanda, it empowered practitioners to monitor antiretroviral drug stocks in real time, and accelerated the return of CD4 and viral load test results to remote facilities. In September 2012, 252 of the 457 health facilities were using the electronic system (> 50% of coverage) . Kenya and other countries have used the mhealth technology to transmit laboratory results to mobile phones which are sent to SMS printers in referring clinics to utilize for patient management [24, 25, 34, 35, 36].
Opportunities for PPPs to scale up HIV viral load and early infant diagnostic testing
Uptake of VL and EID test results: To close the knowledge gap of clinicians (e.g., nurses, midwives, clinical officers, medical doctors) for the uptake of viral load test results , members of African Regional Collaborative for Laboratory Technologists collaborated with Roche-PEPFAR PPP and provided VL training to nurse leaders from 17 countries in SSA. The training emphasized the role of nurses in initiating request for VL testing and utilizing VL test results for patient management in ART clinics .
Safe and standardized specimen collection process: Phlebotomy-related errors account for > 60% of errors in the pre-analytical phase  and can lead to delayed or incorrect results, with unjustifiable costs to patient. Roche-PEPFAR PPP collaborated with the US CDC to develop an online training tool to standardize specimen collection procedures using an alternate specimen type - dried blood spots (DBS), to improve access to viral load testing. The training is accessible at the African Society for Laboratory Medicine (ASLM) portal in English, French and Portuguese .
Quality assured test results to clients: Strengthening the tiered laboratory network in a country to expand and ensure access to reliable, high-quality VL and EID testing services is critical . US CDC developed a CQI program and Roche-PEPFAR PPP continue to offer the CQI program in its campus in Johannesburg. Average pretest scores in five courses for 94 students from 22 countries rose from 12 to 88% (personal communication, facilitator Anna Murphy, affiliation ASLM). To develop a sustainable, cost-effective solution for wider dissemination, Stronger Together PPP replicated the two week long didactic curriculum into an e-library of 48 training videos, available free of cost through an innovative e-platform . This approach has caught the interest of MOH in several African countries and can also be used to deploy training materials in any area including VL and EID.
Specimen transport and result reporting system: Innovative strategies such as unmanned aerial vehicles to pick up specimens and deliver results within Switzerland (Matternet company)  and in Rwanda and Tanzania (Zipline company)  are examples of technology for use in improving laboratory-clinic interface. These innovations could be leveraged to improve delivery of VL and EID results in similar contexts.
Other unmet needs in the VL cascade represent opportunities for new partnerships. The needs are inadequate and competent workforce, unsafe disposal of hazardous waste materials generated due to increased volume of testing, equipment maintenance, limited data management options to improve laboratory-clinic interface (Fig. 1).
Benefits of PPP to private and public sector
PPPs provided an avenue for private entities to gain access and improved understanding of government’s policies and strategies, which can increase market knowledge and awareness of national priorities. By engaging in PPPs, the private sector can also benefit the local workforce by providing increased access to resources; introducing new goods and services; sharing product/service risks and investments , identifying and increasing local expertise; institutionalizing interventions; and build sustainable laboratory networks with regard to public-supported laboratories . From the public sector perspective, effective PPPs provide additional capabilities, flexibility, skills, resources and funding, which enhance their ability to respond to the demands for increased services or scale-up programs of national importance. Furthermore, at the country-level, PPP’s collaboration can empower countries to mobilize funds and direct them towards highest priority activities; facilitate research and development; and improve affordable healthcare interventions .
Strengths and limitations
This review successfully identified PPPs that have contributed to achieving UNAIDS 90–90-90 treatment goals. While most of the PPP were international, we observed the important role played by local indigenous PPP and further highlighting the important contribution of PPPs. We are cognizant of the small number of published studies highlighting PPP in laboratory system strengthening. Nonetheless, their impact remains unquestionable and underscore the need for more laboratory systems and service delivery focused PPP.
Clearly PPP plays a critical role towards achieving the UNAIDS 90–90-90 targets. Despite the growing emphasis on engaging the private sector as a critical partner to address health care systems, PPPs that strengthen laboratories, the cornerstone of public health programs remain largely untapped. Increased partnerships between public sector and private companies are needed to synergistically address the challenges of achieving universal HIV testing, VL and EID scale up. Opportunities for new local and global PPPs should be harnessed for a standardized and sustained scale up of VL and EID to reach the 90–90-90 goals.
The authors would like to thank Joanna M. Taliano, librarian at Center for Disease Control and Prevention, Atlanta, USA for helping in the literature search. The authors are indebted to Chin-Yih Ou, retired senior officer China CDC for critically reviewing the manuscript. Authors would also like to acknowledge input of Ellen Sampson, Director, Global Marketing at Siemens Healthineers and William Magagna, Vice President Virtual Education Solutions at Siemens Healthineers.
The President’s Emergency Plan for AIDS Relief (PEPFAR) supported staff who designed the study; collected, analyzed, and interpreted the findings; and wrote and reviewed the manuscript.
Availability of data and materials
Data used for this systematic review are available through peer-reviewed materials cited in the manuscript and can be freely accessed online. The data is also available upon request from the corresponding authors.
The findings and conclusions in this report are those of the author(s) and do not necessarily reflect the views of the Centers for Disease Control and Prevention.
RS, PNF, AK, JNN conceived and designed the study; RS, PNF, AK analyzed the data; RS, PNF, AK wrote the paper; RS, PNF, YK, RB, SZ, CM, RG, HA, PLR, AK, JNN interpreted the results, critically reviewed and revised the manuscript, and approved the final manuscript.
Ethics approval and consent to participate
Not applicable; literature review-based research and not involving human subjects or human material.
Consent for publication
The authors declare that they have no competing interests.
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
- 1.UNAIDS. 90-90-90: An ambitious treatment target to help end the AIDS epidemic. Geneva: Switzerland: Joint United Nations Programme on HIV/AIDS (UNAIDS); 2014. p. 33.Google Scholar
- 2.PEPFAR. PEPFAR 3.0 Controlling the Epidemic: Delivering on the Promise of an AIDS-free Generation 2014.Google Scholar
- 6.Kiyaga C, Sendagire H, Joseph E, et al. Uganda's New National Laboratory Sample Transport System: A Successful Model for Improving Access to Diagnostic Services for Early Infant HIV Diagnosis and Other Programs. PloS One. 2013; 8(11): e78609.Google Scholar
- 7.McKinsey and Company. Public-Private Partnerships Harnessing the private sector’s unique ability to enhance social impact, 2009.Google Scholar
- 14.White J, Callahan S, Lint S, Li Helen, Yemaneberhan A. Engaging private health providers to extend the global availability of PMTCT services Available at: http://www.popline.org/node/654988. Accessed Dec 2017.
- 15.Bank W. Public private partnerships for health: PPPs are Here and growing. In: Africa health Forum Finance and capacity for results; 2013.Google Scholar
- 16.PEPFAR. Public Private Partnerships. Available at: https://www.pepfar.gov/partnerships/ppp/. Accessed Jan 2018.
- 17.Dickinson BC. BD and PEPFAR launch labs for life to strengthen Laboratories in Regions Heavily Burdened by disease; 2012.Google Scholar
- 18.Roche. Roche and the US President’s Emergency Plan for AIDS Relief (PEPFAR) partner to strengthen laboratories medicine training and knowledge on the African continent. Available at: http://www.roche.com/media/store/releases/med-cor-2012-12-04.htm. Accessed Feb 2018.
- 19.Siemens Healthcare. New Public-Private Partnership Uses e-Learning to Fight HIV/AIDS Available at: https://www.businesswire.com/news/home/20140922005881/en/Public-Private-Partnership-E-Learning-Fight-HIVAIDS#.VCCDs42x4mh. Accessed March 2018.
- 20.Roche Diagnostics Commitment and Care Across the Globe Making a world of difference in HIV/AIDS and TB. Available at: https://www.roche.com/dam/jcr:87619bc4-5054-46d1-a028-7a798de807b9/en/sust-diagnostics-access.pdf. Accessed March 2018.
- 21.Healthineers S. PEPFAR Rapid HIV Testing Continuous Quality Improvement (RT-CQI). Available at: https://pep.siemens-info.com/en-us/pepfar-hiv-rtcqi. Accessed 11th June 2018.
- 23.Wharton Univ of Penn. Riders for Health. Available at: https://lipmanfamilyprize.wharton.upenn.edu/2015-finalist-riders-for-health/. Accessed Feb 2018.
- 24.Fogarty International Center. Mobile Health (mHealth) information and Resources Glob Health Matters. Vol. 8. National Institute for Health: Fogarty, 2009.Google Scholar
- 25.UNAIDS. HIV-related Public-Private Partnerships and Health Systems Strengthening, 2009.Google Scholar
- 28.WHO for Special Programme for Research and Training in Tropical Diseases T. Special Programme for Research and Training in Tropical Diseases, TDR. Available at: http://www.who.int/tdr/news/2016/riders-for-health/en/. Accessed Feb 2018.
- 30.Abbott. Improving Access to Healthcare in Tanzania. Available at: https://www.abbott.com/responsibility/social-impact/access-to-healthcare/articles/healthcare-access-tanzania.html. Accessed December 2018
- 31.Abbott and Abbott Fund. Elevating Healthcare In Tanzania. Available at: https://www.abbott.com/responsibility/social-impact/access-to-healthcare/healthcare-in-tanzania.html-. Accessed Feb 2018.
- 33.Center for Health Market Innovations. TRACnet. Available at: https://healthmarketinnovations.org/programs/search/tracnet. Accessed Feb 2018.
- 34.mHealth Kenya Public Private Partnership. Leveraging technology to improve health care outcomes. Available at: https://mhealthkenya.org/. Accessed Feb 2018.
- 36.World Health Organization. Mobile health: transforming the face of health service delivery in the African Region. Available at: http://www.aho.afro.who.int/en/blog/2015/03/10/mobile-health-transforming-face-health-service-delivery-african-region. Accessed Aug 2017.
- 37.UNAIDS. Ending AIDS, progress towards the 90–90-90 targets, vol. 2017. p. 32.Google Scholar
- 38.Goosby E, Zygocki R I. Public-Private Partnerships Are Vital to Creating an AIDS-Free Generation. Available at: http://www.huffingtonpost.com/ambassador-eric-goosby-md/publicprivate-partnership_3_b_3719564.html. Accessed April 2018.
- 42.ASLM. HIV Viral Load Scale up Tools. Available at: http://www.aslm.org/hiv-viral-load-testing/hiv-viral-load-scale-tools/. Accessed 11th June 2018.
- 43.Healthineers S. PEPFAR Quality Control and Method Validation. Available at: https://pep.siemens-info.com/en-us/pepfar-qc-workshop. Accessed June 11 2018.
- 44.Stewart J. Switzerland's Getting a Delivery Network for Blood-Toting Drones. Available at: https://www.wired.com/story/switzerlands-getting-a-delivery-network-for-blood-toting-drones/. Accessed Feb 2018.
- 45.Forbes. Zipline Is Launching The World's Largest Drone Delivery Network In Tanzania. Available at: https://www.forbes.com/sites/leifwalcutt/2017/08/24/zipline-is-launching-the-worlds-largest-drone-delivery-network-in-tanzania/#11071ef3293b. Accessed Mar 2018.
Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.