[Devitalizing effect of Jodonal A in vitro on bacteria subject to a short-term exposure]

In a three-minute exposure in vitro Jodonal A devitalized a culture of serological group B streptococci in a 2% concentration, Staphylococcus aureus in a 16% concentration, Pneumococcus in a 4.5% concentration, Corynebacterium pyogenes in a 2.5% concentration, Pseudomonas aeruginosa in a 3% concentration, and Klebsiella pneumoniae in a 2% concentration. Hence Jodonal A concentrations higher than 16% should be tested for udder teat disinfection after the removal of teat cups.