Further studies on the antigenic structure of paratyphoid bacilli with special reference to three new species of Salmonella

Abstract

Three new species of Salmonella are described. 1. S. durban was obtained from an adult native woman suffering from dysentery. The antigenic formula allocated to it was IX-a, enx. 2. S. reading var. kaapstad was isolated from the cerebrospinal fluid of a child suffering from meningitis. Its antigenic structure was found to be IV-eh: 1, 7. 3. Two unrelated organisms were isolated from one of a group of pigs affected with paratyphoid. The one turned out to be S. heidelberg, factors IV, V-r: 1.2, while the other was found to be a new species with the following antigenic structure: XI- k: 1,2. The latter was named S. pretoria. 4. The biochemical reaction of these organisms are given in Table 1.