Top 5 Stories From IDWeek

David Altarac, MD, discusses 2025 SENTRY data, ESBL considerations in empiric therapy, and where ceftobiprole fits alongside ceftaroline in S aureus bacteremia.

Jean van Wyk, MBChB, MFPM, discussed the 5-year OPERA data from IDWeek 2026 as well as the anticipated CROWN study results.

Cefiderocol MICs fell against Pseudomonas aeruginosa and Klebsiella pneumoniae, and the drug showed marked synergy with LL-37 against resistant Acinetobacter baumannii. Jacinda Abdul-Mutakabbir, PharmD, MPH, AAHIVP, discusses her team's findings around this therapy and these pathogens.

Shionogi data presented at IDWeek 2026 demonstrated a 76.7% clinical response with cefiderocol in carbapenem-resistant respiratory infections and high in vitro activity against resistant P aeruginosa VAP isolates. Christine Slover, PharmD, vice president, Infectious Diseases US Medical Affairs, Shionogi, offers insights on the data as well as clinical considerations for providers when weighing the antibiotic for patients.

Labcorp data presented at IDWeek 2026 show measles PCR testing nearly quadrupled and positivity rose sharply from April 2025 through March 2026, as clinicians shift toward guideline-recommended molecular testing amid ongoing US outbreaks.

In this first IDWeek 2026 roundup, oral olorofim matched AmBisome in invasive aspergillosis, aztreonam-avibactam held activity as MBL-producing CRE rose, pritelivir cut hospitalizations in refractory HSV, and zelicapavir shortened RSV symptoms in high-risk adults.

David Altarac, MD, discusses the 2026 IDSA guidance, which prioritizes sulbactam-durlobactam plus a carbapenem for invasive carbapenem-resistant Acinetobacter infections.

Investigational agent Zelicapavir cut time to complete RSV symptom resolution by up to a week and lowered hospitalization in high-risk adults.