vaccinated. that s a be ig step into making the world normal again and so we all don t need to wear masks and for everyone to be safe and healthy. cnn correspondent rosa flores is live in houston. what are you seeing there? reporter: it s a very emotional day. i talked to two parents and they both broke down in tears of emotions and joy as jen her harrington tells me. this is jennifer harrington and her daughter parson. she just took the shot. she told me she feels good. i wanted to share part of your story because i thought it was so incredible. kristen was 11 months old she had a lung transplant here at texas hospital. now she is back for this shot. tell me about coming back here to get this shot. you know, it s a real like