Penicillin nontoxic in humans by first performing toxicity tests in animals and then on humans. His subsequent experiments on penicillin's response to heat and pH allowed Fleming to increase the stability of the compound. The one test that modern scientists would find missing from his work was the test of penicillin on an infected animal, the results of which would likely have sparked great interest in penicillin and sped its development by almost a decade. The importance of his work has been recognized by the placement of an International Historic Chemical Landmark at the Alexander Fleming Laboratory Museum in London on
Penicillin (band) its 15th anniversary as a band. On March 9, 2007 Gisho announced that he would leave the band. His last live was his birthday on May 20, 2007 at Shibuya O-East. Since then the band has continued on as a three piece unit. During the February 11, 2008 live, it was announced the Penicillin would once again change labels, this time to Nippon Crown. As of 2010, they are now on That Records, a division of their talent agency Duplex Developments. Penicillin's song "Romance" was covered by And on the compilation "Crush! -90's V-Rock Best Hit Cover Songs-". The album