Even though 5-year-old Kamila is used to getting blood drawn, she cried out when the needle pricked her arm, clinging to her mother for comfort in a classroom-turned-clinic in the northern Colombian city of Riohacha.

Venezuelan Kamila was born premature at 30 weeks, weighing just 900 grams (2 lbs). Her early entry into the world came with kidney problems and cerebral atrophy that have delayed some parts of her development and kept her limbs spindly.

She is one of thousands set to receive treatment this week from doctors and dentists from United States Navy hospital ship the USNS Comfort.