Gram staining remains one of the first and most important tests in microbiology, offering rapid classification of bacteria as Gram-positive or Gram-negative based on cell wall structure. This early ...

A polyp lesion with colibactin-producing E. coli (pks+) is shown in panels A–C. (A) HE staining of the polyp lesion, which shows high-grade tubular adenoma. (B) High magnification of A. (C) A few ...

To study how best to treat potentially dangerous infections commonly seen in people with underlying chronic medical conditions, two infectious disease experts at Johns Hopkins Medicine have been ...