Context on the polio immunization program
Indonesia is the largest archipelago in the world and highly influenced by climate. With more than 240 million people that live in uneven distribution, Indonesia consists of numerous ethnic, cultural and linguistic groups. Indonesia has recently emerged as a middle-income economy with a long history as a low-income country. The political and social landscapes have also been evolving through transition from authoritarianism towards democracy and decentralized reforms.
The Indonesian health system has a combination of public and private providers and consists of public and private financing. The public system was administered within a centralized government system until 1999. Since then, the decentralized government system has been responsible for the state-owned system, with the coordination of central, provincial, and district governments. The MoH at the national level is in charge of management for tertiary and specialist hospitals, providing strategic direction, setting standards, enforcing regulation, and ensuring the availability of financial and human resources. Provincial governments are responsible for the management of provincial-level hospitals, technical oversight and monitoring of district health services, and coordination of cross-district health issues within the province. District or municipal governments are responsible for the management of district/city hospitals and local Primary Health Cares (PHC)s and their networking (13).
As first declared at the World Health Assembly in 1988, polio eradication in Indonesia is carried out under the Expanded Program on Immunization (EPI). The Directorate General of Disease Control and Prevention (DGDC), Health Quarantine (DSHQ), and the MoH through the Sub Directorate of Immunization and Surveillance, have taken full liability of the program, prioritizing polio eradication and the provision of the vast majority of funding for all activities. As a component of the program, Acute Flaccid Paralysis (AFP) surveillance is under the Sub Directorate of Surveillance, while the EPI program is under the Sub Directorate of Immunization. Thus, rather than creating an organization for a polio eradication program in Indonesia, the program has been incorporated by the government within existing institutions (14).
In Indonesia, the Oral Poliovirus Vaccine (OPV) was included during routine immunizations in 1981 (14). The effort towards eradication began in 1991 and has been fully implemented since 1995. Full implementation is stipulated by the following: the polio eradication program is not only related to morbidity report/ clinical approach, but also relies on active case finding by Active Flaccid Paralysis (AFP) surveillance; and, the provision of routine and supplementary polio immunization. Although GPEI was not a program priority until 1995, the Indonesian MoH continued to make various efforts to increase the coverage of polio immunization. Thorley and Soenardi, (2017) mention that in the era of centralization, MoH, through DGDC and DSHQ, was the primary stakeholder along with partners from WHO, UNICEF, Rotary, and the CDC along with the multisector ministry. The Puskesmas (primary health care centers) and their networks managed and delivered the basic immunization program, however the program could also be accessed through private providers.
Scaling up first appeared in the period of the centralization era, from 1983 to 2000 (Fig. 1). The coverage of immunization increased from 5.8–67.5% within 1983–1987, and in 1990 national immunization coverage was achieved. In 1991, polio eradication was initially implemented in Indonesia, and immunization coverage continued to increase. During the period from 1990 to 1995, health allocation increased more than ten times, and polio immunization was scaled up. The indigenous poliovirus was eradicated in Indonesia four years after this program was fully implemented in the country.
The multi-dimensional crisis (in 1998) and alteration to the decentralized health system (1999–2000) influenced polio immunization coverage (Fig. 2). In the decentralization era, there was no longer direct command from the central level to the provincial level, as well as from provincial to the district level. Local governments became responsible for the delivery of immunization programs in their areas. Still, however, the central government remained responsible for additional immunization activities: providing vaccines, syringes and needles; technical assistance; developing guidelines; monitoring and evaluation; maintaining quality; and training. At the sub-national levels, EPI and VPD (Vaccine Preventable Diseases) surveillance were normally housed in the same section.
Although the coverage dropped around that time, additional activities, such as Supplementary Immunization Activities (SIA)s and National Immunization Day (NID), helped to boost polio immunization coverage after the outbreak in 2005. Thus, polio immunization coverage rebounded and increased incrementally in the decentralization era between 2006–2014. Afterward, in 2014, Indonesia received polio-free certification from SEARO. Independent organizations related to immunization emerged after the polio outbreak, such as Indonesian Technical Advisory Group on Immunization (ITAGI), National Certification Committee on Poliomyelitis Eradication (NCCPE), and Expert Review Committee (ERC).
In this paper, we identified two models of scaling up polio immunization coverage between 1983 and 2014. Program implementation in 2000–2004 was more focused on sustainability rather than scaling up and has been described elsewhere (15).
The polio immunization program in Indonesia started as vertical scaling up; the innovation was first institutionalized at the national level and replicated in the lower organization, before scaling up was continued in the decentralized era. Vertical scaling up has been described as an institutionalized program where the priority program is organized in upright management structures and service delivery arrangements (16). Thus, vertical scaling up refers to the centralized health system where GPEI management was under direct control of the MoH until 1999.
The second scaling up model emerged in the decentralization era between 2006 and 2014. Ideally, the scaling up process that happened in decentralization should be classified as horizontal scaling up. A horizontal delivery approach is defined as a parallel process or replication of scaling up, where this model is delivered through regular infrastructure health facilities (16). However, this was not the approach in Indonesia. In the decentralization era, no information showed that the scaling up happened due to the replication of the polio immunization program that occurred in expanded districts and provinces (Fig. 4). Hence, expanded activities occurred mainly due to the increasing number of subnational government areas. Most expanded provinces show a lower polio coverage trend at the beginning of decentralization (Fig. 3).
Findings from both the centralized and decentralized era showed that polio immunization scaling up required collaboration of stakeholders and the community. Successful advocacy requests to national leaders made polio a priority program, with support from the non-health sector. Polio immunization was also well received by the community because of a massive movement towards community-based campaigns. Indonesia’s scaling up process can thus be summarized as the following: (i) planning; develop scaling up target output and innovation, (ii) identifying user organization and resource team, (iii) analyzing environment, (iv) deciding and implementing strategic planning, and (v) monitoring and evaluation.
Challenges
From the survey, 54.8% of participants mention that external factors such as political, socio-economic, and technological factors were the most challenging facet in immunization activity. A total of 62.5% perceived that the social element was the most influential factor.
In the earlier stage of the polio immunization program, many Puskesmas did not conduct immunization service. This was due to issues with or unavailability of immunization infrastructure such as electricity, vaccine transport, or refrigeration equipment. Indonesia also has geographical disparity and topographical challenges which limited the availability of outreach activities. The availability of funding for this program was also limited until polio eradication became a program priority, together with mother-child health and the community nutrition program. Before Indonesia held the first NID in 1995, advocacy to the president had to be conducted several times. Lack of experience in conducting huge mass mobilization was also a challenge.
After no indigenous poliovirus was found, the barriers of this program were more related to the limited availability of outreach activities and cold chain maintenance, competing priorities in the decentralization era, limitation of funding, negative perception of immunization side-effects, and suspicion of vaccine ingredients which are considered forbidden by moslems (haram), despite awareness campaigns. From the health system perspective, the barriers were decreasing commitment, changes in organizational structure, and the limitation of program monitoring. High staff turnover and the unsmooth process of transitioning from centralization towards decentralization are suspected to be the cause of a lack of continuity and accountability.
“The turnover of health workers is also too fast. After they are trained, sometimes after 6 months or 1 year they have moved to other department.” (Technical assistant, national level).
“Maybe I will be said to blame the decentralization system, but if using decentralization system, we need more people and commitment from those people. If using centralization system, we only need one commitment from one person, and the commanding was easy.” (Former manager, national level).
Scaling Up Innovation
The main findings can be grouped into two categories: vertical scaling up in the centralization era and scaling up in the era of a decentralized health system. A summary of key findings from KII and the survey are presented in Table 1.
Vertical Scaling Up in Centralization Era
At the initial stage, the main strategy was to prepare immunization infrastructure and to implement the program at the lowest level (Puskesmas). After EPI’s initiation program in 1977, the inclusion of the OPV became part of routine immunization in 1981 (17). Polio was first introduced into routine immunization with 3 doses of OPV in 1983 and then in 1993 the number of doses increased to 4 (18).
Due to budget conditions, MoH requested financial support from external partners such as WHO, UNICEF, USAID, and Rotary. This support included hiring staff for polio-related immunization, surveillance and laboratory positions; developing and maintaining the infrastructure for vaccine production, procurement and logistics, surveillance and data reporting, and management; full financing of polio vaccines; purchasing physical assets (e.g., laboratory equipment, computers); and covering operational costs for mass immunization activities.
“So, we need to build full chain infrastructure etc. The next challenge was service infrastructure” (Program manager, national level).
A massive polio immunization campaign started in 1995 with two rounds of NIDs conducted in August and September, and repeated in 1996 and 1997. In addition to that, sub-NIDs were conducted in several high-risk areas from 1998–2001 due to low polio immunization coverage, unsatisfactory AFP surveillance performance, and the high risk of wild polio virus importation.
NID in the polio eradication program was the first public health activity in Indonesia that was supported with economic analysis, so this program was more acceptable to other sectors. All NIDs were successful because of the massive campaign which involved other related ministries and institutions, such as Ministry of Home Affair, Minister of Development Planning, Food and Drug Administration, Bio Farma, and the Indonesia State Army at national level. At the community level, the involvement of PKK (women organization), Muhammadiyah, NU, Lions Club, Rotary Club, and other professional organizations assisted in increasing awareness, while some also supported immunization delivery.
“In polio eradication (program) we (MoH) for the first time did cross-sectoral collaboration. Previously, we (MoH) worked alone.” (Former stakeholder, national level).
Scaling Up in Decentralization Era
NIDs continue to be conducted in the decentralization era. In 2002, the main purpose was to secure the goal of polio eradication in Indonesia after all the efforts. Supplementary immunization activities were conducted between 2005–2007 as a response to the polio outbreak. From 2009–2011, polio immunization campaigns were integrated with the measles crash program (19). After that, polio immunization relied on the routine immunization program. (20).
To achieve this milestone, the program focused more widely than just increasing polio immunization coverage through NIDs and SIA. Robust surveillance systems and lab containment were carried out to strengthen this program. Since 2002, additional staff were assigned as surveillance officers. AFP surveillance was extended to environmental surveillance in 2011. Moreover, there has also been new vaccine technology, such as the developments of non-porcine vaccine and vaccine combination. Additionally, legal protection in national immunization guidelines appeared to protect health workers from adverse events following immunization.
“[After reforms], the condition change, we [government] were sued and the health workers were afraid to do immunization, asking for guarantee of legal protection.” (Former stakeholder, national level).