Overview
- The university and San Diego County Public Health Services updated case counts on Sept. 30 to 14 confirmed mumps infections and one probable case linked to a single student athletic team.
- Officials are running daily screenings, testing, contact tracing and isolating infected students as needed, and the school set up a free on‑campus MMR booster clinic at the Calpulli Center.
- Local reporting has identified the team as the football program, but SDSU has not confirmed that public detail and school and coaches cite FERPA and HIPAA when refusing to name affected players.
- San Diego State’s first availability report listed roughly 32 players with designations including out, doubtful, or questionable, leaving key positions thin ahead of the Pac‑12 opener.
- Mumps is vaccine‑preventable but immunity can wane; symptoms typically appear 12 to 25 days after exposure, most cases resolve in about a week to 10 days, and boosters are used in outbreaks to curb spread and protect close contacts.