Prevalence of HPV genotypes determined by PCR and DNA sequencing in cervical specimens from French women with or without abnormalities

Automation of the linear array HPV genotyping test and its application for routine typing of human papillomaviruses in cervical specimens of women without cytological abnormalities in Switzerland

“…12,13 Higher HPV prevalence was observed in Germany and in France, but, for these studies samples were not selected randomly and the examined population consisted of hospital patients. 14,15 The HR-HPV prevalence was 8.1% and is consistent with previous studies in Switzerland and worldwide. 6,13,16,17 HPV positivity was highest among women aged 21-30 years and then decreased at older ages.…”

“…18 However, the second most prevalent genotype is HPV-18 in the Western European countries, whereas in our study it is HPV-31. 1,6,14,18 These findings have to be interpreted in light of widespread agreement that the vast majority of HPV infections are transient in young women, in that those infections are cleared by the immune system within 1-2 years of exposure without any detectable lesions. With longer HPV persistence of a given genotype, the probability of subsequent clearance over a fixed interval decreases and the risk of precancer diagnosis increases.…”

Molecular analysis and conventional cytology: association between HPV and bacterial vaginosis in the cervical abnormalities of a Brazilian population

“…Our study revealed a similar percentage of HPV-DNA to studies performed in Slovenia and West Africa (Jenko et al, 2011;Piras et al, 2011). However, a higher percentage of HPV was observed in North Sardinia, Italy (35.9%); Madrid, Spain (43.2%); France (45.3%); Rio Grande do Norte, Brazil (48%); Kuwait (51%); and Texas, USA (63%) (Pannier-Stockman et al, 2008;Fernandes et al, 2009;Al-Awadhi et al, 2011;Martín et al, 2011;Piana et al, 2011;Shen-Gunther and Yu, 2011). In contrast, a lower percentage of infection was found in studies in Sweden (7%) and Albania (15.1%) (Naucler et al, 2009;Filipi et al, 2010).…”

Type-specific prevalence of Human Papillomavirus infection among women in the Northwest Territories, Canada

“…The proportion of HR types among the HPV-positive women was lower than those found in British Colombia and Ontario but higher than that found in Quebec [26][27][28]. Similar to most European studies, the two most common HPV types detected in NWT were HPV16 and 31 [29][30][31][32]. The HPV16/18 prevalence in the NWT was lower than that observed in all similar studies in Canada [26][27][28] but was comparable to the prevalences observed in studies in Europe and the US [31,[33][34][35].…”