Radiation used in CT scans may be harmful to the genetic material within mummified remains.

VOA: special.2010.06.29

Ruhli notes researchers used that technique to study the evolution of the tuberculosis bacteria from 2,000-year-old mummified tissue to modern-day strains.

VOA: standard.2010.05.05

Even in modern times, you can find people in apartments laying there for ten years after death and been mummified because of a specific airflow and temperature which supported the mummification procedure."

VOA: standard.2010.05.05