Microbiology and Molecular Biology Reviews® (MMBR) publishes reviews dealing with all aspects of microbiology related fields, including:

Microbial ecology
Evolution
Parasitology
Biotechnology
Immunology
The journal appeals to scientists with diverse interests in all areas of microbial science and covers viruses, bacteria, archaea, fungi, unicellular eukaryotes, and microbial parasites. The journal primarily publishes authoritative and critical reviews at the leading edge of knowledge, appealing to specialists and generalists alike, frequently including descriptive figures and tables.

Historical analyses will be considered only if there is strong justification for this approach. Unevaluated compilations of scientific literature and annotated bibliographies are outside the scope of the journal. Meeting and conference reports are not suitable unless the scientific content is incorporated in the form of a comprehensive review.