[Is there a geographic epidemiology of serogroups O of Pseudomonas aeruginosa?]. / Existe-t-il une épidémiologie géographique des sérogroupes O de Pseudomonas aeruginosa?

3720 human strains of P. aeruginosa from Egypt, France, Greece, Iracq and Portugal were studied by serotyping, phage typing, and ONPG-test. The comparison of the results with the data of the scientific literature suggests that three classes of P. aeruginosa O groups can be characterized on the basis of their geographical distribution in the world: 1 degree Nine serogroups with worldwide distribution: 0:1, 0:2, 0:3, 0:4, 0:5, 0:6, 0:8, 0:9 and 0:11. 2 degrees Five serogroups absent (or very rare) in a few countries but present in others: 0:7, 0:10, 0:12, 0:13 and 0:16. 3 degrees Two serogroups very rare in all countries: 0:14 and 0:15.

[Biotypes of Salmonella typhimurium in Iraq]. / Biovars de Salmonella typhimurium en Irak.

207 Salmonella typhimurium strains isolated from childrens below three years (190 strains), adult patients (8 strains), health carriers (7 strains) or animals (2 strains) were studied with the biotyping scheme of Cordano, Richard and Vieu (1971). Five biovars were found and 76.8% of the strains were TTR+, Ino+, Tre+, d. Tar- (biovar d). In Irak the epidemiology of the Salmonella typhimurium human infections is associated with an high frequency of strains of Salmonella typhimurium 0:5- (var. Copenhagen), biovar d.

[Salmonella typhi lysotypes in Iraq (1974-1979)]. / Lysotypes de Salmonella typhi en Irak (1974-1979).

The distribution of phage-types was studied among 434 strains of S. typhi from Bagdad, Amara and Bassora. Biotypes, colicinogeny, tetrathionate-reductase activity (TTR) and susceptibility to Salmonella phage O.I. were also studied. The most frequent phage-types in Irak were A, D1, E1 alpha, F1, M1, O, T, 46 and two other large groups of strains (I + IV and Vi degraded strains). Only 4.38% of S. typhi were TTR-; the strains of phage-type 53 were TTR+. Colicinogeny was demonstrated in 2.5% of S. typhi (lysotype 40, group I + IV and Vi degrades strains). All strains were lysed by Salmonella phage O.I, with the exception of three strains of phage-type T. Comparisons were made with the S. typhi phage-type in Iran and evidence was found for one regional epidemiological community in respect to the distribution of phage-types.

[Inventory of serotypes of Salmonella found in Iraq]. / Inventaire des sérotypes de Salmonella rencontrés en Irak.

This list of the Salmonella found in Bagdad demonstrates their considerable frequency. The frequency of salmonelloses in Irak is very significant, because not only of their incidence on human health, but also on economy: price of salaries, animal death, abortion in the veterinary field, tourism and food exportation handicap.