My 2 mo old grandson just got back his 2nd mutation of 1898+3G>G. We knew he had D508 but we having been waiting on the second one. I have been trying to research this mutation but everything is confusing to me. The CR center said they had only 8 people on file with these same mutations but had no info to give my daughter. I don't understand that. The nurse said the article she had showed the symptons could be mild to moderate. I haven't found anything on that as well. Any info will be appreciated.