The Scope of the Crisis: Over 2 Million Children at Risk

Data from the Indonesian Pediatrician Association (IDAI) reveals a staggering gap in immunization coverage. As of April 2026, more than two million Indonesian children have not received basic vaccinations—a condition known as “zero dose.” These children are at significantly higher risk of contracting and spreading preventable diseases, with potential long-term consequences for their growth and development.

Lestari Moerdijat, Deputy Speaker of the People’s Consultative Assembly (MPR), emphasized the urgency of the situation in a recent statement. “Basic vaccinations are the foundation for the growth and development of every child, which determines the future of the nation,” she said. “Without them, we risk creating a generation vulnerable to diseases that could have been prevented.”

Why Are Parents Rejecting Vaccines?

The decline in immunization rates isn’t due to a single cause but rather a combination of factors that have eroded public trust in vaccines. Health experts point to three primary drivers:

1. Misinformation and Social Media

False claims about vaccine safety—particularly regarding side effects and long-term health risks—have spread rapidly through social media platforms. A 2025 study published in The Lancet Regional Health found that nearly 40% of Indonesian parents who refused vaccines cited online misinformation as their primary reason. Viral videos and conspiracy theories have amplified fears, often targeting the halal status of vaccines or linking them to unverified health complications.

2. Religious and Cultural Concerns

Indonesia, home to the world’s largest Muslim population, has seen vaccine hesitancy fueled by concerns over halal certification. Some parents refuse vaccines if they contain ingredients derived from non-halal sources, despite assurances from religious leaders and health authorities. The Indonesian Ulema Council (MUI) has repeatedly issued fatwas confirming the permissibility of vaccines, but skepticism persists in many communities.

3. Systemic Barriers to Access

Even among parents who support vaccination, logistical challenges remain. Remote and rural areas often lack sufficient healthcare facilities, making it demanding for families to access immunization services. Lestari Moerdijat highlighted this issue, urging the government to expand vaccination centers and improve outreach efforts. “Once the community is educated, we must ensure they can easily access the vaccines they need,” she said.

The Consequences: A Looming Public Health Emergency

The decline in immunization rates has already led to a resurgence of preventable diseases. In 2025, Indonesia reported a 30% increase in measles cases compared to the previous year, with outbreaks concentrated in regions with the lowest vaccination rates. Health officials warn that without immediate action, diseases like polio—which was declared eliminated in Indonesia in 2014—could re-emerge.

Dr. Dicky Budiman, an epidemiologist at Griffith University, noted that the current situation mirrors global trends but is particularly acute in Indonesia due to its large population and geographic challenges. “The government must take decisive steps to counter misinformation and improve healthcare infrastructure,” he said. “Otherwise, we risk undoing decades of progress.”

Rebuilding Trust: What’s Being Done?

In response to the crisis, the Indonesian government has launched several initiatives aimed at restoring public confidence in vaccines:

• Grassroots Education Campaigns: Health workers are conducting door-to-door outreach in high-risk communities to address concerns and dispel myths about vaccines.
• Partnerships with Religious Leaders: The Ministry of Health is collaborating with the MUI and local imams to emphasize the religious permissibility of vaccines.
• Expanding Vaccination Centers: Modern clinics are being established in underserved areas to improve access, particularly in rural and remote regions.
• Social Media Monitoring: Authorities are working with tech companies to identify and remove false claims about vaccines from platforms like Facebook and TikTok.

Despite these efforts, experts agree that rebuilding trust will take time. “This isn’t just about providing vaccines—it’s about rebuilding faith in the institutions that deliver them,” said Dr. Budiman. “That requires transparency, consistency, and a commitment to addressing the root causes of hesitancy.”

Key Takeaways: What You Need to Know

• Over 2 million Indonesian children remain unvaccinated, leaving them vulnerable to preventable diseases.
• Misinformation, religious concerns, and lack of access are the primary drivers of vaccine hesitancy.
• Measles cases have surged by 30% in 2025, signaling a broader public health crisis.
• The government is expanding vaccination centers and launching education campaigns to counter misinformation.
• Experts warn that without intervention, diseases like polio could re-emerge in Indonesia.

FAQ: Common Questions About Indonesia’s Immunization Crisis

Q: Why are so many parents in Indonesia refusing vaccines?

A: The reasons are complex and interconnected. Misinformation about vaccine safety, concerns over halal status, and systemic barriers to healthcare access all play a role. Social media has amplified fears, while logistical challenges produce it difficult for some families to access vaccines even if they want them.

Q: What diseases are most at risk of resurging?

A: Measles has already seen a significant increase in cases, but health officials are particularly concerned about the potential re-emergence of polio. Indonesia was declared polio-free in 2014, but low vaccination rates could reverse that achievement.

Q: Are vaccines in Indonesia halal?

A: Yes. The Indonesian Ulema Council (MUI) has issued multiple fatwas confirming the permissibility of vaccines, even those containing non-halal ingredients, due to the public health necessity. However, some parents remain skeptical.

Q: What is the government doing to address the issue?

A: The government is taking a multi-pronged approach, including expanding vaccination centers, launching education campaigns, and partnering with religious leaders to address concerns. They are also working with tech companies to combat misinformation online.

Q: How can parents verify vaccine safety?

A: Parents are encouraged to consult trusted sources like the Indonesian Pediatrician Association (IDAI), the Ministry of Health, and local healthcare providers. These organizations provide evidence-based information about vaccine safety and efficacy.

The Road Ahead: A Call to Action

Indonesia’s immunization crisis is a stark reminder of how quickly public health gains can unravel when trust erodes. While the challenges are significant, they are not insurmountable. Success will depend on a coordinated effort between government agencies, healthcare providers, religious leaders, and communities to rebuild confidence in vaccines.

For parents, the message is clear: vaccines save lives. The risks of preventable diseases far outweigh the unfounded fears that have led to this crisis. As Lestari Moerdijat put it, “It will build strong herd immunity as a foundation for creating a healthy and competitive future generation.” The question now is whether Indonesia can act quickly enough to protect that future.