There are two main types of plastic-eating microbes. One consumes polyolefin plastics like Polyethylene (PE) and polypropylene (PP). The other consumes polyester plastics like polyethylene terephthalate (PET).
They're mutually exclusive, so at least there's that? Durable medical equipment isn't going to be impacted very strongly, but it might necessitate seal integrity indicators for disposable and sealed-sterile equipment.