Gingipain proteases from the bacterium Porphyromonas gingivalis confer protection against airway viral infection

Proceedings of the National Academy of Sciences, Volume 123, Issue 18, May 2026. <br/>SignificanceReciprocal interactions between microbial colonizers and host epithelial cells are critical for providing initial defense against viral infections. Here, we present a mechanism that adds another layer of complexity, where proteases produced by …