Polyvalent OMA antiserum (A, B, D1, D2, E1, E4 and L) and polyvalent OMB antiserum (C1, C2-C3, F, G and H) were developed at the Pasteur Institute in HoChiMinh city. These reagents are used in the rapid presumptive diagnosis of Salmonella.
Salmonella ; diagnosis

HoChiMinh Pasteur Institute has produced the specific diagnostic antiserum for O-salmonella group A, B, C, D, E and Vi anticortex antiserum for many years. Owing to some favorable conditions, the Institute had produced some monophase H antiserum with H:a, H:b, H:c, H:d, H:g,m and H:i used in identifying the specific serotype of some serious salmonella spp.: S. paratyphi A, S.paratyphi B, S. paratyphi C and S. typhi caused typhoid and paratyphoid. S.entertidis and S.typhimurium caused food poisoning.
Salmonella ; diagnosis

240 enterobacteriaceae strains were maintained in EGG medium IPH for 14 years (1985-2000) or 10 years (1990-2000). Results: E.coli, Shigella spp., Salmonella spp., Klebsiella spp. and Proteus spp., survived: 88.6%; 94.44%; 90%; 100%; and 100% respectively, but only 18% of Vibrio cholerae serotype Inaba strains survived. However, 86,67% of Vibrio cholerae serotype Inaba strains survived for 10 years (1990-2000).
Bacterial Infections ; Enterobacteriaceae

Background: Vertebral fractures are the most common complication of osteoporosis, but more than two-thirds are asymptomatic. Therefore, the present study was conducted with the following objectives: (1) To describe some characteristics of incident asymptomatic vertebral fractures in adults aged 50 years and older in Vietnam; (2) To evaluate some factors related to incident asymptomatic vertebral fractures in adults aged 50 years and older in Vietnam. Materials and Methods: 455 adults aged 50 years and older volunteered to participate in the study. Cohort study of the Vietnam Osteoporosis Study (VOS) project. Results and Conclusions: In 29/455 cases of incident asymptomatic vertebral fractures followed after 2 years, the most common characteristics included: wedge fracture type (73.3%), grade 2 fracture (56.7%), and the most common locations are T12 and L1 (over 50%). Factors associated with incident vertebral fractures are advanced age and smoking.