DEERFIELD, Ill.--(BUSINESS WIRE)--Baxter International Inc. (NYSE:BAX) announced today that a voluntary recall of all manufactured lots of HYLENEX recombinant (hyaluronidase human injection) has been initiated as a precautionary measure due to instances of particulate matter observed in a limited number of HYLENEX vials during routine stability testing. Baxter is working with the product’s NDA-holder, Halozyme Therapeutics, to investigate the root cause of the issue and appropriately address the situation.