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Study: Combining vaccines boosts polio immunity

Combining vaccines boosts polio immunity

Polio has been wiped out of many countries thanks to massive use of oral vaccine. But new research suggests trying a one-two punch where the disease is still a threat: Giving a single vaccine shot to children who’ve already gotten the drops boosted their immunity.

World Health Organization officials say the combination strategy could help finally eradicate polio.

Which vaccine works best has long been debated. They each have different strengths. Wealthy countries today use only injected polio vaccine, but the oral version is used in developing countries because it is cheaper, easier to administer and better at stopping virus transmission.

Thursday’s study tested nearly 1,000 children in India who had previously received several oral vaccinations and found giving a shot was a better booster dose than more oral drops.

Associated Press

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