Measles, chickenpox and other diseases could make a comeback because fewer kids are getting vaccinated | COMMENTARY

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As parents around the country cancel well-child checkups to avoid coronavirus exposure, immunizations are dropping at a dangerous rate, putting millions of children at risk for measles, whooping cough and other life-threatening illnesses.

In the U.S. our children rarely fall ill to grave infections because they are protected by vaccines. Serious illnesses like measles, mumps, congenital rubella syndrome, chickenpox, diphtheria, tetanus, whooping cough, rotavirus diarrhea, hepatitis (A and B), polio and bacterial meningitis are all preventable through routine childhood vaccinations.

It is not magic that keeps our children safe from these many serious illnesses, it is vaccines — routine delivery of safe and effective vaccines. What will happen if we stop vaccinating or if we reduce our vaccination rates? These diseases will return. We will have epidemics of these old diseases during an unprecedented pandemic of a new disease.


Yet, during the pandemic, we have seen a staggering reduction in the proportion of children vaccinated, despite recommendations by the U.S. Centers for Disease Control and Prevention (CDC), the American Academy of Pediatrics and the Maryland Department of Health, agencies that have provided guidance for us to continue to deliver vaccination services to children.

We all are hopeful that clinical trials of vaccines and therapeutics for COVID-19 lead to licensed products that are safe and effective, but we must not forget to continue to provide child vaccines, the most important protections against infections that we already have available.


In Maryland alone, there has been a 32% reduction in all vaccines given to children from birth to 11 months of age and a 47% decline in 12- to 23-month-old toddlers. Even more alarming, as we begin a reentry into greater normalcy, after weeks of stay-at-home mandates, Maryland’s pre-kindergarten vaccine rates have collapsed by an astounding 76%. Vaccines for measles, mumps and rubella alone, which critically protect our children from measles, have tumbled 71% In March and April, 15,950 fewer children in Maryland received this vaccine when compared to the same time last year.

Under-vaccination is widespread in the U.S., not just in Maryland, as reported by the CDC. We are at serious risk for calamitous syndemics of COVID-19 plus other highly contagious diseases, like whooping cough and measles, if we do not return to the rates of protection we had before the pandemic.

Without vaccination of our children, the SARS-CoV-2 virus will win another victory.

In 2019, when measles hit many communities in the U.S., leading to 1,282 cases, Maryland was spared. Only five of our children were infected and there was no significant person-to-person spread. In 2017 and 2018, there was only a single case of measles in Maryland each year. This year, so far: none. Why? Not magic; we vaccinate.

Right now, with almost no one traveling and very little personal contact outside the home, these contagious pathogens cannot gain a foothold. But, once people start moving, so do viruses and bacteria. If our children remain unprotected when we fully “reopen,” reemergence of diseases that were once kept at bay by vaccines is inevitable.

Why are we not vaccinating? There are overlapping reasons. Families are sometimes scared to travel to or enter any health care facility for fear of getting COVID-19. Communities have received mixed messages about what kinds of care are essential. There is confusion about whether care providers are open and which hours are for sick or well children. We want to assure families that pediatricians are open, safe and eager to see their children.

Importantly, in a COVID-19 world, families may feel that the only care warranted is for “urgent” medical problems, like acute illnesses, and they may underestimate the vital importance of vaccines for our children. This is especially true as many providers have come to rely on “telemedicine” for visits that can be done remotely. During these encounters, we may fail to prioritize communications to families about the importance of timely, complete childhood vaccinations.

We cannot allow COVID-19 to take a greater toll on us than it already has by leading to the unintended consequence of vaccine-preventable disease outbreaks in our communities. Pediatricians, parents, researchers, advocates, educators, officials, and everyone who cares for children need to fix this problem now. We owe it to the children. If we don’t speak up for them, who will?


Dr. James Campbell ( is a professor of pediatrics at the University of Maryland School of Medicine and chair of the subcommittee on immunizations, Committee on Infectious Diseases of the American Academy of Pediatrics.