Quality control stock cultures are available from all of the following, except
A) American Type Culture Collection (ATCC).
B) commercial sources.
C) proficiency testing isolates.
D) Centers for Disease Control and Prevention (CDC).

Question

Quizplus · Accepted Answer

The Centers for Disease Control and Prevention (CDC) does not provide quality control stock cultures. The CDC is primarily involved in public health and disease prevention, not in distributing stock cultures for quality control purposes. The American Type Culture Collection (ATCC), commercial sources, and proficiency testing isolates are commonly used for obtaining quality control stock cultures in laboratory settings.

Quality Control Stock Cultures Are Available from All of the Following