Infectious Disease Digest: This Week's Key Updates and Breakthroughs

Pritelivir (Hovilpri) healed all lesions by day 28 in 63% of immunocompromised adults with refractory HSV versus 34% with investigator's choice in the phase 3 PRIOH-1 trial.

CDC is continuing its investigation into 4 multistate Salmonella and E coli outbreaks, led by a 76-case alfalfa sprout cluster across 16 states and a recalled raw milk cheese.

The latest CDC numbers show a 5.0% increase of measles cases from week-to-week. The US total reached 4080 confirmed cases, 78% above all of 2025.

UTI guidelines are moving away from complicated or uncomplicated infections to localized or systemic classification terminologies. Guidelines author Zachary Nelson, PharmD, MPH, BCIDP, provides further insights on the changes including applying antibiograms, potential costs, and whether clinicians will embrace these new classifications.

Demonstrating a diagnostic test works is no longer enough. Clinicians and laboratories also need evidence on how to adopt it in everyday practice. Andrea Prinzi, PhD, MPH, SM(ASCP), explains how implementation science can help infectious disease and clinical microbiology teams turn evidence into routine care.

Kenya reported its first imported Bundibugyo Ebola death as the Democratic Republic of Congo (DRC) outbreak surpassed 8,600 confirmed cases and 4,148 deaths, with 896 patients hospitalized in isolation. Here is a report on the latest numbers as well as vaccine and therapeutic study updates.

With US measles cases nearing 3,900 this year and Pennsylvania reporting its fifth measles-related death, here is a review of how the virus spreads, how it is prevented and managed, and what severe disease looks like.

Vaxcyte's 31-valent pneumococcal conjugate vaccine candidate met every prespecified primary immunogenicity and safety endpoint against PCV20 and PCV21 in the OPUS-1 trial of 4,047 US adults.