HPV Infection and Distribution of HPV Genotypes on Patients with Condyloma Acuminatum

ObjectiveTo determine the incidence of infection with HPV and the distribution of HPV genotypes on patients with Condyloma acuminatum.MethodsTwenty-three different HPV types were detected by PCR and reverse dot blot (RDB) hybridization over all 6 508 samples of vulva and cervix uteri in patients with condyloma acuminatum. Including 18 types were high-risk (HR)-HPV (16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66, 68, 73, 83 and MM4), and 5 types were low-risk (LR)-HPV (6, 11, 42, 43 and 44).ResultsAmong 6 508 cases, there were 3 288 cases with HPV infection and the incidence rate was 50.52%. The positive HPV patients overlap all 23 genotypes detected. There were 2 038 cases infected with a single HPV type and 1 250 cases infected with multiple HPV types. The constituent ratios in positive cases were 61.98% and 38.02%, respectively. There were 1 453 cases only with LR-HPV types infection, 945 cases only with HR-HPV types and 890 cases both with LR-HPV and HR-HPV infection, and the constituent ratios were 44.19%, 28.74% and 27.07%. There were 4 843 times positive HPV infection, including HR-HPV 2 361 times and LR-HPV 2 482 times. The common HR-HPV genotypes were 16, 52, 58, 56, 18, 66 and 33, and the incidence ratios were 6.31%, 5.06%, 4.04%, 2.60%, 2.41%, 2.40% and 2.28%. And the common LR-HPV genotypes were 6, 11 and 43, and the incidence ratios were 16.98%,11.09% and 6.75%, respectively. Overlap 23 types, the most common genotypes were HPV6 and HPV11, the incidence rates were higher than others (P<0.05).ConclusionHPV infection, especially with HR-HPV genotypes infect genital tract, which caused Condyloma acuminatum and cervical lesions, or cervical cancer. The detection of HPV genotypes was very important to prevent, diagnose early and therapy for cervical lesions or cervical cancer.