The answer
You would need to check with each manufacturer as to whether its disinfectant products are considered green, and if they are approved to kill MRSA.
There are some new silver-based and natural ingredient-based products on the market that are considered less toxic than previous disinfectants.
You may wish to visit the following sites:
www.enviroxLLC.com
www.vitaltechnologies.com
www.benefect.com