Surrounded by soldiers, a government health agent uses larvicide to kill Aedes aegypti mosquitos that spreads the Zika virus in the Tijuca neighborhood of Rio de Janeiro, Brazil, Monday, Feb. 15, 2016. The Aedes aegypti mosquito lives largely inside homes and can lay eggs in even a bottle-cap's worth of stagnant water. The dishes beneath potted plants are a favorite spot, as are abandoned tires, bird feeders and even the little puddles of rainwater that collect in the folds of plastic tarps. (AP Photo/Silvia Izquierdo)
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