Tong-de area of Qinghai Province had been identified by seroepidemiology as the high infection area of hepatitis B virus where the Zang population inhabit.To formulate a preventive strategy against hepatitis,we invest...Tong-de area of Qinghai Province had been identified by seroepidemiology as the high infection area of hepatitis B virus where the Zang population inhabit.To formulate a preventive strategy against hepatitis,we investigated in this area the biological characteristics and the genotypes of hepatitis B virus(HBV).PCR was used to amplify HBV S and C genes of samples from Zang population. The amplified products were sequenced,the nucleotide identities were analysed(MEGA 3 software) and the phylogenetic tree was constructed.The results showed that S gene of most of the HBV serum samples clustered into genotype D while C gene of the samples clustered into genotype C which demonstrated that HBV genotypes mostly were recombinants of HBV C and D genes in Zang population in Tong-de area of Qinghai Province.展开更多
83年11月—84年5月,西宁地区麻疹流行期间,对麻疹并肺炎的113例患儿经细菌、病毒的分离,初步证实了西宁地区麻疹合并肺炎的主要病原。麻疹合并肺炎患儿其中98例细菌培养,分离出致病性细菌27株,占25.6％,经与临床及 X 线胸片提示附合为...83年11月—84年5月,西宁地区麻疹流行期间,对麻疹并肺炎的113例患儿经细菌、病毒的分离,初步证实了西宁地区麻疹合并肺炎的主要病原。麻疹合并肺炎患儿其中98例细菌培养,分离出致病性细菌27株,占25.6％,经与临床及 X 线胸片提示附合为细菌性肺炎。展开更多
文摘Tong-de area of Qinghai Province had been identified by seroepidemiology as the high infection area of hepatitis B virus where the Zang population inhabit.To formulate a preventive strategy against hepatitis,we investigated in this area the biological characteristics and the genotypes of hepatitis B virus(HBV).PCR was used to amplify HBV S and C genes of samples from Zang population. The amplified products were sequenced,the nucleotide identities were analysed(MEGA 3 software) and the phylogenetic tree was constructed.The results showed that S gene of most of the HBV serum samples clustered into genotype D while C gene of the samples clustered into genotype C which demonstrated that HBV genotypes mostly were recombinants of HBV C and D genes in Zang population in Tong-de area of Qinghai Province.
