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  • Title: Prevalence and distribution of HPV types in genital warts in Xi'an, China: a prospective study.
    Author: Zhu C, Wang Y, Mao W, Zhang H, Ma J.
    Journal: BMJ Open; 2019 May 14; 9(5):e023897. PubMed ID: 31092642.
    Abstract:
    OBJECTIVES: To characterise the prevalence and distribution of human papillomavirus (HPV) types in genital warts in Xi'an, China. METHODS: This prospective study was conducted in Shaanxi Provincial Institute for Skin Disease and STD Control (SPISSC) between September 2014 and April 2017. Genital wart samples were obtained from 879 patients, including 512 men and 367 women. HPV genotyping was performed by using an automatic nucleic acid hybridisation system. RESULTS: Of the 879 patients with genital warts, the detectable rates of low-risk, high-risk and total HPV types were 45.4%, 34.5% and 57.8%, respectively. The detectable rate of low-risk HPV types (45.4%) was significantly higher than that of high-risk HPV types (34.5%) (χ2=21.85, p<0.01). The detectable rate of low-risk HPV types of men (52.3%) was significantly higher than that of women (35.7%) (χ2=23.90, p<0.01). The detectable rates of one HPV type infection and two and three or more HPV type coinfections were 26.1%, 17.5% and 14.2%, respectively. HPV6 (24.9%), HPV11 (17.9%), HPV52 (9.9%) and HPV16 (7.3%) were the four most common HPV types. CONCLUSIONS: The results of this study suggest that low-risk HPV types are major pathogens of genital warts, but high-risk HPV type infections and multiple HPV type coinfections are also common in genital warts. HPV6, 11, 52 and 16 are the four most common HPV types in genital wart in Xi'an, China.
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