When kids start school this fall, it’s a sure bet that some won’t have had their recommended vaccines because their parents have claimed exemptions from school requirements for medical, religious or philosophical reasons. Following the much publicized that started in Disneyland in CaliforniaÌýin December, these exemptions have drawn increased scrutiny.
That outbreak, which eventually infectedÌý147Ìýpeople in seven states, was a wake-up call for many parents, who may not have realized how contagious or serious the disease can be, and for states as well, say public health officials.
“States are beginning to realize that they have effective measures to combat these outbreaks, and philosophical exemptions are eroding these protections and resulting in significant costs to states,” says Dr. Carrie Byington, professor of pediatrics at the University of Utah andÌýchairwomanÌýof the American Academy of Pediatrics Committee on Infectious Diseases.
In addition, research shows that eliminating vaccine exemptions or making them harder to get canÌýimprove vaccination rates andÌýreduce disease outbreaks.
California and VermontÌýpassed laws this year eliminating exemptions in 2016Ìýfor philosophical reasons; California’s lawÌýeliminatesÌýreligious exemptions as well.
The federal Centers for Disease Control and Prevention provides suggested for children and adults, but there’s no federal requirement that parents vaccinate their children. All states, however, have laws or policies requiring that children be up-to-date on recommended vaccines in order to attend school orÌýday care. Unvaccinated children can generallyÌýattendÌýonlyÌýif their parents have obtained a .
Every state allows medical exemptions for children whose immune systems are compromised because of congenital problems or cancer treatment, for example. Nearly all states allow exemptions from vaccinations because of religious beliefs; excluding California and Vermont, , according to the National Conference of State Legislatures.
Just three states–West Virginia, Mississippi and now, California–allow vaccine exemptions .
This KHN story can be republished for free ().In recent years,Ìýexemption ratesÌýfor childrenÌýhave soared, but they vary. On the low end, New Mexico’s rate was less than half a percent in 2012, while the top state rate was Oregon’s at 6.5 percent, according to a .
Local rates may be much higher, though. There are pockets in California and Colorado, for example, where the exemption rates top 30 percent, says L.J Tan, chief strategy officer at the , an advocacy group that works to increase immunization rates.
But since in most places the percentage of children getting the recommended vaccines topsÌý90 percent for most diseases,Ìýmany parents have never seen someone with measles, for example, or whooping cough and may not understand their dangers.
“In the absence of disease the alleged risks of the vaccineÌýbecomeÌýeasier to sell,” says Tan.
Those risks are real, says Barbara Loe Fisher, co-founder and president of the National Vaccine Information Center, a group that based on their philosophical or personal beliefs. Fisher testified before the California State Assembly against the new law, which takes effect next July.
“Some people are more susceptible than others to injury or death from vaccines,” Fisher says. “But it’s not clear who is at higher risk.”
For the vast majority of people, however, vaccines are very safe, and studies have failed to show a link to autism, a common concern of parents who don’t vaccinate their kids.Ìý “The risk of getting the disease is higher than the risk of getting a vaccine,” says Dr. Mark H. Sawyer, a pediatric infectious disease specialist at the University of California, San Diego.
The Health Affairs study analyzed the different elements of state rules to tease out the extent to which they affected vaccine exemptions. It found, for example, that policies that required the state health department to approve nonmedical exemptions or permitted exemptionsÌýonlyÌýforÌýspecific vaccines rather than all vaccines had a significant effect on reducing vaccine exemptions. So too did laws that imposed civil or criminal punishments such as expulsion from school (for the child) or criminal negligence charges (for parents) for not complying with vaccination rules.
The threat of penalties alone may be enough to deter parents from refusing vaccinations, says study co-author W. David Bradford, a professor of public policyÌýat the University of Georgia.
The more restrictive policies were reflected in lower rates of whooping cough. States with the most effective exemption policies had an average incidence of 7.3 pertussis cases per 100,000 people from 2002 to 2012, while states with the least effective policies had an incident rate more than twice as high at 16.06 cases, the study reported.
More broadly, the study shows that there are tools that work. “There is room for lots of states to improve their policies in ways that encourage people to get their kids vaccinated,” says Bradford. “I take that as encouraging.”
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