Answer:macrophages are responsible for engulfing pathogens to destroy them.
Explanation: Because Some pathogens subvert this process and instead live inside the macrophage
The correct answer would be, The staff giving the steroid injections did not use proper aseptic technique.
The doctor tells him that problem has occurred to many other people across the US. The staff giving the steroid injections did not use proper aseptic technique would be the most likely cause of this situation.
Explanation:
Aseptic techniques are the techniques or processes or procedures that are used by the health care workers to avoid contamination from pathogens. The most strictest rules are being applied and used by them to avoid any possible infection to the patients who already have weak immune systems and are more prone to infections.
When health care workers do not use the aseptic techniques to their best, in surgery rooms, clinics, care centers or other health facilities, then people are more likely to be caught by infections.
So when Joe was caught by an infection during his treatment of knee, the most likely reason was the lack of proper use of the aseptic techniques.
Learn more about Aseptic Techniques at:
brainly.com/question/2787872
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