Mycoplasma Outbreak Response for Cell Culture

Pain point

Mycoplasma can persist unnoticed, distort cell physiology, and spread between cultures/incubators.

Repro/diagnostic steps

1. Confirm by an approved test approach (don't rely on morphology alone).
2. Map exposure: shared media, water baths, pipettes, incubators, and shared biosafety cabinets.
3. Identify high-value lines and whether clean backups exist.

Root causes (common)

• Introduction from contaminated cell line or reagent.
• Cross-contamination via shared equipment or poor aseptic boundaries.
• Infrequent routine testing.

Fix workflow

1. Immediately quarantine suspect cultures (physical separation).
2. Test neighboring cultures and common reagents.
3. Decide: discard and recover from clean stocks vs treat (risk-managed).
4. Deep-clean shared equipment; implement routine test cadence and intake quarantine.

Expected result

• Clean cultures remain negative on follow-up tests; contamination routes are closed.

References

• https://www.atcc.org/resources/culture-guides/mycoplasma-detection-and-elimination
• https://www.thermofisher.com/us/en/home/references/gibco-cell-culture-basics/mycoplasma-contamination.html