Nikolas Olivera, left, helps his brother Lucian while walking together on March 28, 2016, inside their home in Moorpark, Calif. Lucian suffers from a condition called acute flaccid myelitis, which causes polio-like symptoms. His left leg is paralyzed and his right leg is partially paralyzed. (Mel Melcon/Los Angeles Times/TNS)
Nikolas Olivera, left, helps his brother Lucian while walking together on March 28, 2016, inside their home in Moorpark, Calif. Lucian suffers from a condition called acute flaccid myelitis, which causes polio-like symptoms. His left leg is paralyzed and his right leg is partially paralyzed. (Mel Melcon/Los Angeles Times/TNS) Mel Melcon TNS
Nikolas Olivera, left, helps his brother Lucian while walking together on March 28, 2016, inside their home in Moorpark, Calif. Lucian suffers from a condition called acute flaccid myelitis, which causes polio-like symptoms. His left leg is paralyzed and his right leg is partially paralyzed. (Mel Melcon/Los Angeles Times/TNS) Mel Melcon TNS