American Society for Microbiology Source For Microbiology: The American Society for Microbiology is dedicated to the utilization of microbiology and microbiological sciences for the promotion of human welfare and for the accumulation of knowledge. Idioma: English / English | American Society for Microbiology Is the oldest and largest single life science membership organization in the world. Membership has grown from 59 scientists in 1899 to more than 43,000 members today, with more than one third located outside the United States. Idioma: English / English |