A nurse prepares a syringe for a measles vaccination at a pediatric clinic in Kiev, Ukraine. The country had 72,408 measles cases in the year from March 2018 to February 2019 — the highest number for any country during that period.
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Cost, procrastination and a lack of insurance coverage are just a few of the reasons adults give health care providers for not getting vaccinated against shingles and other illnesses.
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A review of the evidence suggests that alerting people — by text, phone call or other method — when they're due or overdue to get a particular vaccination can boost immunization rates.
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This World Health Organization map shows the percent of the population vaccinated for measles in each country in 2013. Dark green is at least 90 percent. Light green is 80 to 89 percent. Orange is 50 to 79 percent. Red is less than 50 percent.
Courtesy of WHO