Ixodes tick and Borrelia burgdorferi bacterium

Journal issue cover picture published in association with the complete genome sequence of the Lyme disease spirochete, Borrelia burgdorferi strain B31

Bacteriophage L

A bacteriophage L virion structure

Large inclusions containing Chlamydia psittaci (red) are found in cells not expressing the iron exporter Ferroportin-GFP (green).

HLA-DM structure showing residues that are critical for DM function.

Time-lapse images of uropathogenic Escherichia coli expressing GFP within biofilm-like inclusions that develop in bladder epithelial cells.

Scanning electron micrograph showing filamentous uropathogenic Escherichia coli emerging from within a bladder epithelial cell.

Stalled replication forks in the nucleus of HIV infected cells.