Ano-genital human papillomavirus type 97 infection is detected in Canadian men but not women at risk or infected with the human immunodeficiency virus.
Human papillomavirus type 97 (HPV97) DNA was detected in nearly 5% of anal samples collected from HIV-seropositive men living in Montreal, Canada. The rate of detection of HPV97 in the genital tract of Canadian women is unknown. Whether HPV97 is a local epidemic in HIV-seropositive men living in Montreal is also unknown. The prevalence of human papillomavirus type 97 (HPV97) was assessed in cervicovaginal cells from women living in Canada and in anal samples from HIV-seropositive men living in Toronto.
Cervicovaginal lavages collected from 904 women (678 HIV-seropositive, 226 HIV-seronegative) women living in Canada and anal cells collected from 123 HIV-seropositive men living in Toronto were tested for the presence of HPV97 with PCR. HPV97-positive samples were further tested by PCR-sequencing for molecular variant analysis to assess if all HPV97-positive men were infected with the same strain. All cervicovaginal samples were negative for HPV97. HPV97 was detected in anal samples from 6 HIV-seropositive men (4.9%, 95% confidence interval 2.0-10.5%), of whom five had high-grade and one had low-grade anal intraepithelial neoplasia, in addition to 2 to 8 HPV genital genotypes per sample. Four HPV97 variants were defined by four variation sites in the viral control region.
These findings indicate that HPV97 infects in the anal canal of HIV-seropositive men but is not detected in the genital tract of women.
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Cites: J Pathol. 2001 Mar;193(3):295-30211241407
Cites: J Infect Dis. 2003 Nov 15;188(10):1517-2714624377
Cites: J Infect Dis. 2004 Nov 1;190(9):1575-8515478061
Cites: J Med Virol. 1997 Jan;51(1):42-78986948
Cites: CMAJ. 1999 Jan 26;160(2):185-919951439
Cites: J Infect Dis. 2005 Jun 1;191(11):1796-80715871111
Cites: PLoS One. 2011;6(5):e2018321673791
Cites: J Infect Dis. 2006 Oct 1;194(7):886-9416960775
Cites: Int J Cancer. 2007 Jul 1;121(1):193-817351898
Cites: Int J Cancer. 2008 Mar 1;122(5):1195-717960620