Saturday, July 26, 2014

FYI on HPV


Data from CDC.gov:

Approximately 79 million Americans are infected with human papillomavirus (HPV), and approximately 14 million people will become newly infected each year. Some HPV types can cause cervical, vaginal, and vulvar cancer among women, penile cancer among men, and anal and some oropharyngeal cancers among both men and women.


There are, however, two HPV vaccines available (Gardasil® and Cervarix®) which protect against the types of HPV infection that cause most cervical cancers (HPV types 16 and 18). Both vaccines should be given as a three-shot series. Clinical trials and post-licensure monitoring data show that both vaccines are safe.
 The  CDC recommends vaccination for the prevention of HPV infections responsible for most types of cervical cancer. As with all approved vaccines, CDC and the Food and Drug Administration (FDA) closely monitor the safety of HPV vaccines following licensure. Any problems detected with these vaccines will be reported to health officials, health care providers, and the public. Needed action will be taken to ensure the public’s health and safety.

What HPV vaccines are available in the United States?
Two HPV vaccines are licensed by the FDA and recommended by CDC. These vaccines are Cervarix (made by GlaxoSmithKline) and Gardasil (made by Merck).
How are the two HPV vaccines similar?
  • Both vaccines are very effective against diseases caused by HPV types 16 and 18; HPV 16 and 18 cause most cervical cancers, as well as other HPV associated cancers.
  • Both vaccines have been shown to prevent cervical precancers in women.
  • Both vaccines are very safe.
  • Both vaccines are made with a very small part (in this case, the protein outer coat) of the human papillomavirus (HPV) that cannot cause infection.
  • Both vaccines are given as shots and require 3 doses.
How are the two HPV vaccines different?
  • Only one of the vaccines (Gardasil) protects against HPV types 6 and 11, the types that cause most genital warts in females and males.
  • Only one of the vaccines (Gardasil) has been tested and licensed for use in males.
  • While both vaccines protect against HPV16, which is the most common HPV type responsible for HPV associated cancers including cancers of cervix, vulva, vagina, penis, and anus and oropharynx, only one of the vaccines (Gardasil) has been tested and shown to protect against precancers of the vulva, vagina, and anus.
  • The vaccines have different adjuvants—a substance that is added to the vaccine to increase the body's immune response.
Who should get HPV vaccine?
Cervarix and Gardasil are licensed, safe, and effective for females ages 9 through 26 years. CDC recommends that all 11 or 12 year old girls get the 3 doses (shots) of either brand of HPV vaccine to protect against cervical cancer. Gardasil also protects against most genital warts, as well as some cancers of the vulva, vagina and anus. Girls and young women ages 13 through 26 should get HPV vaccine if they have not received any or all doses when they were younger.
Gardasil is also licensed, safe, and effective for males ages 9 through 26 years. CDC recommends Gardasil for all boys aged 11 or 12 years, and for males aged 13 through 21 years, who did not get any or all of the three recommended doses when they were younger. All men may receive the vaccine through age 26, and should speak with their doctor to find out if getting vaccinated is right for them.
The vaccine is also recommended for gay and bisexual men (or any man who has sex with men) and men with compromised immune systems (including HIV) through age 26, if they did not get fully vaccinated when they were younger.

For more information, visit www.CDC.gov, and discuss the option of HPV vaccination with your children's healthcare provider. 

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