About 250 children at a Texas detention center were administered adult dosages of the hepatitis A vaccine, U.S. Immigration and Customs Enforcement officials said. No averse side effects have been reported, but the children are being monitored by healthcare professionals at the South Texas Family Residential Center in Dilley, the Los Angeles Times reports. "Parents at the facility were advised and counseled by medical professional about potential side effects, with services made available in multiple languages," ICE said in a statement.