Health and Me

Dr. R. Kishore Kumar

World Immunization Week 2026: For Every Generation, Vaccines Work

In my early years of clinical practice, it was not uncommon to see children admitted with severe <span>measles</span>, struggling with complications that could turn fatal. 

<span><a href="https://www.healthandme.com/health/polio">Polio</a></span> was not a chapter in textbooks—it was visible in outpatient clinics, in children who came in with permanent disabilities, and in families learning to cope with lifelong consequences. 

<h2>Vaccines Save Lives: From Polio To COVID</h2>

Diarrheal diseases filled pediatric wards, often pushing already fragile children to the brink. These were not isolated cases; they were a pattern we saw far too often. What changed this reality was not a coincidence. It was vaccines.

Over the years, I have witnessed firsthand how immunization has transformed pediatric care in India. The introduction of the measles <span>vaccine</span> in 1985, followed by the second dose in 2010, has brought us to a point where a disease once feared by every parent is now on the verge of elimination. 

Similarly, the impact of the Pulse Polio Immunization campaign has been extraordinary. From routinely seeing children affected by polio, we moved to a historic milestone—India being declared polio-free on March 17, 2014. For clinicians who have seen both sides, this shift is nothing short of remarkable.

The change has been equally significant in other areas. There was a time when severe diarrhea dominated pediatric admissions. Today, with better sanitation and the introduction of the rotavirus vaccine in 2016, we see far fewer cases of severe rotavirus-related illness. This is not just a statistic—it is reflected in fewer hospital admissions, less distress for families, and better outcomes for children.

More recently, during the COVID-19 pandemic, the importance of vaccines became evident on an unprecedented scale. As healthcare providers, we experienced the strain of the pandemic firsthand. The introduction of vaccines in January 2021 marked a turning point. It not only reduced the severity of illness but also brought a sense of control in an otherwise uncertain situation. The ability to protect lives at such a scale reaffirmed what medicine has known for decades—vaccines are among the most powerful tools we have.

Across diseases, across decades, and across generations, one truth remains consistent: vaccines save lives. However, despite these clear gains, we are now witnessing a concerning shift.

<h2><span rel="noindex">Vaccine Hesitancy</span> And Emerging Diseases</h2>

In recent years, vaccine hesitancy has started to emerge—even among well-informed populations. As a clinician, this is deeply concerning. When diseases become less visible, people begin to underestimate their impact. Questions arise, doubts increase, and misinformation often fills the gap.

The consequences of this are already visible globally. The re-emergence of measles in countries with strong healthcare systems is a clear warning.

As per CDC data from March 18, 2026, the United States has reported 1,362 confirmed measles cases across 20 states, with multiple outbreaks—after more than two decades of control. This is not due to a lack of availability of vaccines, but due to reduced uptake.

From a medical standpoint, this is both predictable and preventable. Vaccination is not just about protecting one individual—it is about safeguarding entire communities. In my practice, I often remind families that immunization protects not only their child but also those who are more vulnerable—newborns, pregnant women, and individuals with weakened immunity. When vaccination rates decline, this collective protection weakens, and diseases find their way back.

History has shown us that progress in public health is not permanent unless it is sustained. The absence of disease does not mean the absence of risk—it often reflects the success of prevention.

The way forward is clear. We must continue to ensure timely immunization, strengthen awareness, and address concerns with clarity and empathy. As healthcare providers, it is our responsibility to build trust and provide evidence-based guidance. As a community, it is equally important to rely on science and not misinformation.

Vaccines have already proven their value—both in data and in daily clinical practice. The science is robust, the outcomes are visible, and the impact is undeniable. The question is no longer whether vaccines work. The question is whether we will continue to trust and use them.

Because the cost of inaction is not theoretical—it is seen in preventable illness, avoidable hospitalizations, and lives that could have been saved. For every generation, vaccines have worked. It is now our responsibility to ensure they continue to.

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In my early years of clinical practice, it was not uncommon to see children admitted with severe measles, struggling with complications that could turn fatal. Polio was not a chapter in textbooks—it was visible in outpatient clinics, in children who came in with permanent disabilities, and in families learning to cope with lifelong consequences. Vaccines Save Lives: From Polio To COVIDDiarrheal diseases filled pediatric wards, often pushing already fragile children to the brink. These were not isolated cases; they were a pattern we saw far too often. What changed this reality was not a coincidence. It was vaccines.Over the years, I have witnessed firsthand how immunization has transformed pediatric care in India. The introduction of the measles vaccine in 1985, followed by the second dose in 2010, has brought us to a point where a disease once feared by every parent is now on the verge of elimination. Similarly, the impact of the Pulse Polio Immunization campaign has been extraordinary. From routinely seeing children affected by polio, we moved to a historic milestone—India being declared polio-free on March 17, 2014. For clinicians who have seen both sides, this shift is nothing short of remarkable.The change has been equally significant in other areas. There was a time when severe diarrhea dominated pediatric admissions. Today, with better sanitation and the introduction of the rotavirus vaccine in 2016, we see far fewer cases of severe rotavirus-related illness. This is not just a statistic—it is reflected in fewer hospital admissions, less distress for families, and better outcomes for children.More recently, during the COVID-19 pandemic, the importance of vaccines became evident on an unprecedented scale. As healthcare providers, we experienced the strain of the pandemic firsthand. The introduction of vaccines in January 2021 marked a turning point. It not only reduced the severity of illness but also brought a sense of control in an otherwise uncertain situation. The ability to protect lives at such a scale reaffirmed what medicine has known for decades—vaccines are among the most powerful tools we have.Across diseases, across decades, and across generations, one truth remains consistent: vaccines save lives. However, despite these clear gains, we are now witnessing a concerning shift.Vaccine Hesitancy And Emerging DiseasesIn recent years, vaccine hesitancy has started to emerge—even among well-informed populations. As a clinician, this is deeply concerning. When diseases become less visible, people begin to underestimate their impact. Questions arise, doubts increase, and misinformation often fills the gap.The consequences of this are already visible globally. The re-emergence of measles in countries with strong healthcare systems is a clear warning.As per CDC data from March 18, 2026, the United States has reported 1,362 confirmed measles cases across 20 states, with multiple outbreaks—after more than two decades of control. This is not due to a lack of availability of vaccines, but due to reduced uptake.From a medical standpoint, this is both predictable and preventable. Vaccination is not just about protecting one individual—it is about safeguarding entire communities. In my practice, I often remind families that immunization protects not only their child but also those who are more vulnerable—newborns, pregnant women, and individuals with weakened immunity. When vaccination rates decline, this collective protection weakens, and diseases find their way back.History has shown us that progress in public health is not permanent unless it is sustained. The absence of disease does not mean the absence of risk—it often reflects the success of prevention.Timely Immunization Is KeyThe way forward is clear. We must continue to ensure timely immunization, strengthen awareness, and address concerns with clarity and empathy. As healthcare providers, it is our responsibility to build trust and provide evidence-based guidance. As a community, it is equally important to rely on science and not misinformation.Vaccines have already proven their value—both in data and in daily clinical practice. The science is robust, the outcomes are visible, and the impact is undeniable. The question is no longer whether vaccines work. The question is whether we will continue to trust and use them.Because the cost of inaction is not theoretical—it is seen in preventable illness, avoidable hospitalizations, and lives that could have been saved. For every generation, vaccines have worked. It is now our responsibility to ensure they continue to.

world immunization week 2026: for every generation, vaccines work

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