You should check with the doctor (or the doctor covering for him) if you could get visiting nurses (home health care) to come in to help him.
The fact that the infection was in the blood stream, as opposed to an open wound, makes it much less likely that the children would "pick it up"
Here is a list of some home health agencies in NJ
http://www.vnaa.org/vnaa/Searches/findVNA.aspx?k=NJ
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