“…Emson (1957) summarized the literature on human infections with P. septica and covered in detail the bacteriology, biochemistry, serology, and classification of this organism. Schipper (1947) studied 14 strains of P. septica (P. multocida) and additional strains from other laboratories; all strains were sensitive in vitro to less than 0.2 unit of penicillin per ml.…”