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• Human papillomavirus (HPV) is the name of a group of viruses that includes more than 100 different strains.
• Approximately 20 million Americans are currently infected with HPV.
• About 6.2 million people become newly infected with HPV each year.
• In 90% of cases, the body's immune system clears an HPV infection naturally within two years.
• Flat warts tend to grow in large numbers—20 to 100 at any one time.

*Sources: American Academy of Dermatology, Centers for Disease Control & Prevention