How are human papillomavirus (HPV) typed?

Updated: Feb 20, 2020
  • Author: Peter A Gearhart, MD; Chief Editor: Pranatharthi Haran Chandrasekar, MBBS, MD  more...
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The definitive cause of anogenital warts is HPV infection. [8, 9, 10, 13] The HPV capsid lacks an envelope, which makes the organism very stable and resistant to various treatments. No serologic typing is available, because of the lack of consistent in vitro culture methods. Typing of HPV is based on genotype, which generally is determined by molecular hybridization using molecularly cloned HPV DNA of known type as the standard. Two HPV are of different types when their DNA hybridize (bind) less than 50% as efficiently to each other as to themselves.

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