Publications

[comprehensive cost-benefit evaluation for the improvement of rural water supply in hunan province].	comprehensive cost-benefit evaluation for the improvement of rural water supply was conducted according to the national standard methods for analysis of water quality. results showed total bacteria count and coliform group count in the water declined by 51% after the improvement, and synthetic index of water quality declined to 19% of that before the improvement. environmental epidemiological studies showed yearly incidence of hepatitis a, typhoid fever, diarrhea and enteritis decreased by 2.20/ ...	1996	8758865
[molecular epidemiological characteristics of salmonella typhi strains isolated in china. i. analysis of salmonella typhi strains isolated in china by multilocus enzyme electrophoresis].	multilocus enzyme analysis by polyacrylamide gel electrophoresis (page) was used to analyse 335 isolates of s. typhi from several provinces where high morbidity of typhoid fever was observed in recent years. we analysed 7 metabolic enzymes encoded by chromosome. the results showed that all the enzyme loci were polymorphic. the average alleles per locus was 7.4 (2-19): the mean genetic diversity per locus was 0.498 (0.198 0.883). there were 147 distinctive electrophoretic types (ets) in 335 isola ...	1994	7834706