they're living close together, there is a lot less very good public health measures in place. we're having a scabies epidemic among them. that's skin condition with intense itching and rash due to a mite and it's highly contagious. and ten to 25% of the immigrants coming in this way have scabies. tuberculosis, we thought we were stamping that out in north america. it's now reemerging. multiple drug resistant tuberculosis, which is harder and harder to treat. denge fever, 50 to 100 million new cases a year world wide. in mexico, it is indemic. it's a terrible disease. you get fatigued, bones hurting you, muscles hurting. it takes weeks and weeks to recover from. no team. it's now emerging in texas because of the immigration crisis. >> measles and chicken pox and leprosy? >> absolutely. i don't want to scare anyone more than i already have.