blog posts Team led by Illinois Prof. Schulten has constructed an atomic model of an immature retrovirus Aug 14, 2015 11:30 am by Sci-NewsIllinois in the News Share on Facebook Tweet Email Images Sci-News (Aug. 13) - "You have two forms of the virus: the immature and the mature. The immature is not infectious, so...ultimately you want to prevent it from becoming the mature form,” said co-author Juan Perilla, also from Illinois. Share on Facebook Tweet Email