"Vaccines, which have saved millions of lives throughout history, have unfortunately become a subject of debate today due to misinformation and a growing lack of trust."
Vaccine refusal means that a person or a family consciously chooses not to get vaccinated, either for themselves or their children. This decision is often based on beliefs that vaccines are harmful, influenced by religious or personal views, or driven by misinformation. However, vaccines are one of the most effective ways to protect against infectious diseases. People who remain unvaccinated not only put themselves at risk, but also endanger babies, the elderly, and those with weakened immune systems. Therefore, vaccine refusal is not just a personal choice, it is a serious public health issue.
Is vaccine refusal increasing in Turkey?
Yes. In Turkey, the number of vaccine refusals has significantly increased over the years. In 2011, there were only 183 refusals; by 2023, this number has exceeded 40,000. This rise weakens herd immunity in the population. According to reports from family physicians, some families refuse all vaccines for their children, while others selectively refuse certain ones. As a result, diseases like measles are reemerging, posing a major public health risk.
Why is vaccine refusal increasing?
There are many reasons why vaccine opposition is growing. Misinformation spread on social media, conspiracy theories, certain religious interpretations, and personal fears all contribute to the problem. The confusion during the pandemic has also deepened public mistrust. Some people fear side effects, while others believe natural immunity is better. However, scientific data clearly shows that vaccines are safe and effective.
Are forgotten diseases returning?
Many infectious diseases that were brought under control years ago through vaccination are now reappearing. Diseases like measles, pertussis, and mumps, once common in childhood but kept at bay by vaccines, are now causing outbreak risks in some areas. The main reason for this resurgence is the decline in vaccination coverage and the rise in vaccine refusal. These illnesses are not just minor rashes, they can lead to pneumonia, encephalitis, and even death. The return of vaccine-preventable diseases is a clear sign of weakened community immunity.
Why is herd immunity important?
Herd immunity is the protection achieved when a large portion of the population is vaccinated, preventing the spread of disease. This is especially vital for those who cannot be vaccinated for medical reasons. If not enough people get vaccinated, infectious diseases can spread rapidly. As vaccine refusal increases, herd immunity declines and the risk of outbreaks rises. A safe and healthy environment for all is only possible with high vaccination rates.
Is vaccine refusal a personal right?
Choosing not to get vaccinated may seem like a personal right, but its consequences affect everyone. Unvaccinated individuals can unknowingly spread diseases to others. If vaccination rates fall among school-aged children, outbreaks can happen quickly. Thus, this issue goes beyond personal preference, it becomes a threat to public health. Rights and freedoms are meaningful only when they do not endanger the well-being of others.
How safe are vaccines?
Vaccines are among the most strictly regulated medical practices in the world. Their production processes, ingredients, and effects go through rigorous testing. While rare side effects may occur, they are usually mild and temporary. The benefits of vaccines far outweigh these small risks. Thanks to widespread vaccination, deadly diseases like smallpox have been eradicated. Vaccines are both safe and effective—this is firmly supported by scientific evidence.
The public needs access to the right information
Accessing accurate information about vaccines isn't always easy. False claims circulating online or among communities can cause unnecessary fear. That’s why educating the public is crucial. Health professionals should communicate clearly and reassuringly, and science-based content must be more visible in the media. How vaccines work, what they contain, and why they matter should be explained in plain language. Awareness efforts should especially be promoted in schools and primary care settings. Meeting the public with accurate information is the most effective way to build vaccine confidence.
Today's decision shapes tomorrow
Every vaccine decision made today lays the foundation for a healthier society tomorrow. Vaccination not only protects the individual but also strengthens community immunity. If vaccine refusal continues to rise, our children may face diseases once thought to be eradicated. Vaccines are not merely a choice; they are a responsibility to future generations. A healthy society is only possible through decisions based on scientific evidence. Getting vaccinated is one of the most powerful ways to protect ourselves, our communities, and our shared future.
Common misconceptions about vaccines
There are many widespread misconceptions about vaccines. One of the most common is the belief that “vaccines cause autism.” There is no scientific evidence to support this claim. Another false belief is that “natural immunity is stronger than vaccines.” However, diseases acquired naturally can lead to severe complications or death. Some people also fear that vaccines contain harmful chemicals. In reality, vaccines are made with safe, low-dose ingredients and undergo continuous safety monitoring. Such misinformation threatens public health.
Abstract
Vaccines are one of the most important public health tools modern medicine has provided. However, in recent years, vaccine refusal in Turkey has been rising rapidly. This has led to a resurgence of preventable diseases like measles and has weakened herd immunity. Although vaccine hesitancy may appear to be a personal decision, its impact on public health is significant. This article highlights the importance of herd immunity, the proven safety of vaccines, the need for accurate public information, and our shared responsibility to protect future generations. Combating vaccine refusal requires science-based knowledge, community solidarity, and trust-based communication. Every vaccine decision today builds the foundation of a healthier society tomorrow.
Demirdelen SF, et al. Dünden bugüne Türkiye’de aşılama ve aşı üretiminin tarihçesi. (2022)
Türkiye Sağlık Enstitüleri Başkanlığı (TÜSEB). Türkiye’nin kısa aşı tarihçesi. (2021)
Doğan MB, et al. Çocuk Aşıları karşıtlığı ve tereddüdünün dünyadaki aşı politikaları ve Türkiye’deki mevzuat bağlamında değerlendirmesi: Geleneksel derleme. (2023).
Tamir TT, et al. Coverage of complete basic childhood vaccination and its variation by basic characteristics among children aged 12–23 months in 41 low- and middle-income countries: A Meta-analysis of demographic and health survey reports between 2015 and 2025. (2025).
Zhou EG, et al. Parental factors associated with measles–mumps–rubella vaccination in US children younger than 5 years. (2025)
Branda F, et al. Global measles surveillance: Trends, challenges, and implications for public health interventions. (2024).
Razai MS, et al. As whooping cough rates rise, we urgently need to increase maternal vaccination rates. (2024).
Fasce A, et al. A taxonomy of anti-vaccination arguments from a systematic literature review and text modelling. (2023).
Holford DL, et al. Psychological profiles of anti-vaccination argument endorsement. (2023)
Palache A, et al. Seasonal influenza vaccine dose distribution in 195 countries (2004–2013): Little progress in estimated global vaccination coverage. (2015)
Bush A, et al. World pneumonia day: Why do we still need it?. (2024).