Bacterial infections diseases and the antibiotic resistance

252 pathogenic bacterial strains have been isolated in Friendship hospital in 1997. Almost strains (66%) are gram negative. The majority of bacteria that caused urinary tract infection are gram negative rods. Gram positive cocci are predominant in the strains isolated from pus, exudates. All strains are tested for antibiotic sensitivity. Enterobacteriaceae are still sensitive to the third generation of cephalosporin, morfloxacin, gentamyxin, netilmixin. Pseudomonas aeruginosa are only sensitive to Amikaxin. Staphylococcus aureus are resistant to oxacillin in high level (54.6%), but still susceptible to bactrim, gentamyxin, vancomyxin.

Some epidemiological and clinical features of acute diarrhoeal disease caused by Campylobacter in a rural commune, Ha Noi

1159 diarrhoeal stool specimens were cultured for detecting Campylobacter. Data on epidemiology and clinical symptoms of the disease were also collected. 104 Campylobacter strains were isolated, positive rate 9%. The highest prevalence of the disease was found in 2 age groups: 7-12 months (15%) and 13-24 months (13.1%), and this proportion decreased gradually with increasing age. No seasonal fluctuation was observed. Clinical symptoms of the disease are not typical so the diagnosis should be based on stool examination.

Rapid diagnosis of camylobacter enteritis by direct staining examination

552 diarrhea stool specimens were stained by base fushin 1% for detecting morphology of camylobacter. Stool specimens also were cultured to isolate the organism. The result showed that: 83 stool specimens were positive with typical morphology of campylobacter by direct staining examination. In 51 positive specimens by culture, there were 41 positive specimens by direct staining examination. Sensitivity of direct staining method was 86.3% and specificity was 93%.