five or six times a day. make sure anyone with asthma has their asthma under good control. >> reporter: we're seeing multiple cases of enterovirus here in los angeles county. but going back to the case of the girl in rhode island, health officials saying that combination very rare. reena, t.j.? cdc investigators are on the ground in dallas contacting anyone who had close contact with the ebola patient being treated there. the cdc team wants to ensure those people are watched closely every day for 21 days. among those possibly some exposed are children who attend dallas schools. texas governor rick perry tried to reassure worried parents. >> i know that parents are being extremely concerned about that development. but let me assure these children have been identified and they are being monitored, and the disease cannot be transmitted before having any symptoms.