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Brazil

Polio in Venezuela

Polio in Venezuela

UPDATED 6/22/2018: PAHO announced that genetic sequencing detected neither wild nor vaccine-derived poliovirus in samples from the acute flaccid paralysis patient in Venezuela.

Brazil Battles Record Yellow Fever Outbreak

Brazil Battles Record Yellow Fever Outbreak

Brazil is battling a record yellow fever outbreak which threatens to spread to coastal metropolises. We discuss the emergency vaccination strategies that are being used by health officials to stem the outbreak, including fractional dosing.