Contagion Summer 2025 Digital Edition

Reported cases of Legionnaires’ disease have been on the rise for the past decade, and identifying Legionella bacteria requires specialized testing in the microbiology lab. Here is a clinical overview of Legionella bacteria, including required testing, treatment, and reporting to public health officials.

A retrospective multihospital study found that severe adverse events occurred at similarly low rates with ceftriaxone and other IV cephalosporins suggesting there is no evidence to support avoiding ceftriaxone despite recent health department safety alerts.

A retrospective study of 225 patients across Cook County Department of Health clinics found that the novel 1-month 1HP regimen (isoniazid plus rifapentine) for latent TB infection had a completion rate comparable to standard longer regimens and was well tolerated, suggesting it may be a viable shorter alternative.

Here is a review of glucagon-like peptide-1 receptor agonist use in people with HIV.

Editor in chief Jason Gallagher, PharmD, FCCP, FIDP, FIDSA, BCPS, discusses the proposed OMB rule restricting federal grants for international research collaboration, and how it threatens infectious disease medicine's inherently borderless surveillance networks, publication access, and knowledge-sharing systems.