KJ Muldoon received a groundbreaking new treatment earlier this year. The baby saved from a rare disease by a first-ever personalized gene fix has reached a big milestone, taking his first steps ahead ...

PHILADELPHIA (WPVI) -- A miracle baby who was treated with a pioneering gene-therapy at Children's Hospital of Philadelphia has reached a major milestone as he took his first steps. KJ Muldoon was the ...

During infection, the human immunodeficiency virus (HIV) inserts itself into the host genome as a chromosomally-integrated provirus that persists in infected cells. Although antiretroviral therapies ...

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