What is the best way to avoid e coil

Prime your coils.

Stop chain vaping.

Reduce power settings.

Keep your vape tank topped up.

Use an e-liquid with more PG.

Try an e-liquid with less sweetener.

Use temperature control

No vaccine or medication can protect you from E. coli-based illness, though researchers are investigating potential vaccines. To reduce your chance of being exposed to E. coli, avoid risky foods and watch out for cross-contamination. "i realize the question doesn't say "E-coli" so i gave a base answer in case it was a typo"