Analysis of mumps antibody levels and mumps virus genotypes in Guilin City in 2015
-
摘要: 目的 了解桂林市2015年流行性腮腺炎患病人群的抗体水平和腮腺炎病毒的基因分型,为流行性腮腺炎的控制提供科学依据。方法 采用酶联免疫吸附试验测定流行性腮腺炎患者静脉血免疫球蛋白G抗体;采用逆转录聚合酶链反应检测流行性腮腺炎患者咽拭子标本中分离的病毒MuV小疏水蛋白基因的序列和基因型,构建SH基因亲缘关系树。结果 本次调查的桂林市263例流行性腮腺炎患者的抗体阳性率为81.75%,各年龄组间抗体阳性率差异无统计学意义(χ2=1.71,P=0.668),但抗体水平比较差异有统计学意义(H=14.16,P=0.003)。不同性别间抗体阳性率差异无统计学意义(χ2=2.83,P=0.092),而不同性别的抗体水平差异有统计学意义(Z=-2.55,P=0.011)。有、无和流行性腮腺炎免疫史不详者三组人群抗体阳性率和抗体水平差异均无统计学意义(χ2=4.61,P=0.100;H=1.85,P=0.413)。从263份患者咽拭子标本中,分离出6株腮腺炎活病毒和19例咽拭子核酸阳性标本,均为F基。结论 桂林市婴幼儿流行性腮腺炎免疫水平偏低;男性发病率较女性高;桂林市腮腺炎流行主要是由F基因型流行性腮腺炎病毒引起的。Abstract: Objective To determine mumps antibody levels and mumps virus genotypes in Guilin city in 2015 and provide a scientific basis for controlling mumps. Methods Immunoglobulin G (IgG)antibody of mumps patients were detected by enzyme-linked immunosorbent assay (ELISA). Small MuV hydrophobic protein gene was genotyped in pharyngeal swab of mumps patients using reverse transcription polymerase chain reaction (RT-PCR). Results The positive rate of mumps virus antibody in 263 cases of mumps in Guilin City was 81.75%. There were no significant difference in the positive rate of mumps virus antibody between different age groups (χ2=1.71, P=0.668),but there were significant difference in the level of mumps virus antibody between different age groups(H=14.16, P=0.003). There were no significant difference in the positive rate of mumps virus antibody between males and females (χ2=2.83, P=0.092), but the level of mumps virus antibody between males and females were significantly different (Z=-2.55, P=0.011). There were no significant differences in antibody positive rates and antibody levels of mumps virus among three groups of patients with epidemic parotitis (χ2=4.61, P=0.100; H=1.85, P=0.413). 25 strains of mumps virus were isolated from the 263 pharyngeal swabs of patients, which are all F genotypes. Conclusions The immune level of mumps in infants and young children in Guilin City is low. The incidence rate of mumps in males is higher than that in females in Guilin. The main type of mumps virus is F genotype.
-
Key words:
- Mumps virus /
- Antibody formation /
- Gene
点击查看大图
计量
- 文章访问数: 275
- HTML全文浏览量: 62
- PDF下载量: 27
- 被引次数: 0