Becoming a father made Dr. Namala Mkopi appreciate why parents worry so much. He's been a leading advocate for childhood vaccines in his native Tanzania. Ben de la Cruz/NPR hide caption

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A nurse in Hyderabad, India, gives a vaccine to a child. The immunization will protect against diphtheria, pertussis, tetanus and other diseases. Noah Seelam/AFP/Getty Images hide caption

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Goats and Soda

Parents In Poor Countries Worry About Vaccines, Too

But not for the same reasons as Western parents. In the developing world, moms and dads want to make sure their kids are immunized quickly enough.

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A child is vaccinated in Makadara Health Clinic, Nairobi, Kenya. Greg Warner/NPR hide caption

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The Ebola vaccine from a trial in Guinea needs to be kept at a temperature of minus 60 degrees Celsius, the World Health Organization says. Storage devices use jet fuel to keep the right temperature for up to five days in the field. Sean Hawkey/Sean Hawkey hide caption

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