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From left to right: Brenda Eduardo Torres, 32 - Joaquin Eduardo Torres Gil, 14 and Alfredo Ivan Torres Gil, 18 - are eating a yogurt with their mother Joaquina at their home in Mexico City, Mexico on February 16, 2017. The three siblings have been diagnosed with Morquio syndrome. Morquio syndrome is a rare inherited birth defect that is estimated to occur in one of every 200,000 births. The disease may not be visible at birth; symptoms usually begin between ages 1 and 3. Morquio syndrome is a progressive disease, meaning symptoms get worse as a child grows. Photo credit: Bénédicte Desrus