This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Injection abscesses due to use of contaminated vaccines occurs in infections caused by 
Select and explain. 
A. M. kansasii, B. M. ulcerans, C. M. chelonae, D. M. smegmatis
C: M. chelonae
Answer: C: M. chelonae 
Explanation: None