Human Papillomavirus
HPV (Human Papillomavirus) is a group of viruses that include nearly 150 genotypes, around 30 - 40 of those can be transmitted through sexual contact, leading to infection of human genital organs.
According to the Department of Health of Hong Kong, to those, regardless of male and female, with sexual activity, there is a chance of 75% (at highest) to have infected HPV. Different genotypes of HPV lead to different symptoms and diseases; If repeatedly infected by high risk HPV types, it is possible to develop precancerous lesion or even invasive cancer, such as cervical cancer, vaginal cancer, anal cancer, etc. More details as below:
- Genital Warts
- Anal Cancer
- Genital Warts
- Cervical Cancer
- Anal Cancer
- Vulvar Cancer
- Vaginal Cancer
HPV vaccine (also named as cervical cancer vaccine) can prevent infection of HPV; both male and female can receive the HPV vaccination to reduce the risk of HPV infection and the progression from persistent HPV infection to cervical cancer and other diseases.
HPV Vaccine
HPV Vaccine Type
Gardasil 4
Gardasil 9
HPV Types Protection
Low Risk: 6, 11
High Risk: 16, 18
High Risk: 16, 18
Low Risk: 6, 11
Suitable For
Age 9 and above (both male and female)
Age 9 and above (both male and female)
Common Side Effect
Soreness and swelling at the injection site, fever, headache and nausea
Soreness and swelling at the injection site, fever, headache and nausea
Protection of Disease by Vaccine (%)*Data provided by Gardasil pharmaceutical company
Cervical Cancer
70%
90%
Vulvar Cancer
75%
90%
Vaginal Cancer
65%
85%
Anal Cancer
85%
95%
Cervical Precancerous Lesion
50%
80%
Gential Warts
90%
90%