[Statistical findings on the variability of chemo-antibiotic resistance in minor Salmonella strains particularly frequent in the Piedmont area].

462 Strains of Salmonella spp. were tested; they had been arranged in species according to the frequency of appearance in Regione Piemonte: 358 of them were isolated in the period 1975-'76 and 104 in 1977. The susceptibility of the two groups considered to 40 antibiotics was determined. The results obtained evidenced significant variations of this parameter.