There is particular concern about Gram-negative bacteria (like E.coli and K. pneumonia), due to their outer membrane which can prevent some antibiotics from penetrating the cell.

BBC: Action on antibiotics

Certain strains of E.coli can cause urinary tract infections, pneumonia and other illnesses.

CNN: What government tests found in your meat

Hospitals, labs and research facilities buy the kits to test for conditions including streptococcus bacterial infections, mononucleosis, parasitic diseases, lyme disease, herpes, chicken pox and shingles, as well as E. coli, transplant infections and respiratory diseases such as pneumonia.

FORBES: Meridian Bioscience Tests Well, Pays Healthy Dividends