According to Natalie, the serialization of manga Alive
ended on February 6th. The final volume 21 will be released in May.
Its anime adaptation
was announced in July 2008, but the author Kawashima Tadashi
revealed in his official BBS on January 13th, 2010 that the project has been stagnating long and he hasn't been informed of any updates. Last October, he also mentioned the bad status of the anime producer due to the economic recession.
, Kawashima's official BBS