Antimicrobial Agents and Chemotherapy features interdisciplinary studies that build our understanding of the underlying mechanisms and therapeutic applications of antimicrobial and antiparasitic agents and chemotherapy. The journal also publishes studies involving animal models, pharmacological characterization, and clinical trials. 

Applied and Environmental Microbiology publishes study results that make significant contributions to applied microbial research, basic microbial ecology research, and genetic and molecular investigations of microbial topics of practical value. The journal sheds new light on key microbiological principles, fundamental microbial processes, and basic questions in applied and environmental microbiology. 

Infection and Immunity publishes research related to infections caused by pathogenic bacteria, fungi, and parasites; molecular mechanisms of pathogenicity; interactions of virulence factors with host cells; innate and adaptive immunity to infection; development of vaccines against nonviral pathogens; and genomes of pathogenic bacteria. IAI also welcomes studies on the interaction of microbial communities with their host. 

Journal of Bacteriology publishes research articles that probe fundamental processes in bacteria, archaea, and their viruses and the molecular mechanisms by which they interact with each other and with their hosts and their environments. 

Journal of Clinical Microbiology publishes the most current research related to the laboratory diagnosis of human and animal infections and the role of the laboratory in both the management of infectious diseases and the elucidation of the epidemiology of infections. 

Journal of Virology publishes primary-research, mini-reviews, and other article formats that interrogate fundamental processes and structure in viruses, the mechanisms by which they interact and evolve with their host and environment, and novel methodologies, therapeutic and diagnostic strategies. 

Molecular and Cellular Biology seeks technically rigorous, mechanistic studies that provide significant advances in the areas of gene expression and genome organization, cellular morphology and function, molecular metabolism, cellular trafficking, and signal transduction. The journal is also interested in studies that investigate molecular, cellular, and systemic host responses to pathogenic agents in chronic diseases and conditions.