What are the vaccines available in Singapore that can help prevent STIs?

Doctor's Answer

Hi Tsing

That is a great question and I always counsel my patients who come for a sexual health check on the importance of considering vaccinations if they need them. Vaccines are available for the following infections, which can be sexually transmitted:

1. Hepatitis A

- If you practice rimming (oral-anal sex), there is a chance of contracting Hepatitis A which causes liver inflammation. Most health screening packages will let you know through a blood test if you are already immune to Hepatitis A or require vaccination.

2. Hepatitis B

- This is another infection which can be transmitted through sexual intercourse. A blood test will let you know if you require vaccination, which is a series of 3 injections over 6 months.

3. Human Papilloma Virus (HPV) vaccine

- The HPV virus is spread through skin contact during sexual intercourse and it is estimated that one in ten women in Singapore have HPV infection. It can infect both males and females and has the potential to cause serious disease including cancer. The low risk subtypes of HPV cause common infections like viral warts and genital warts. The high risk (oncogenic subtypes) are responsible for responsible for cervical, anal, vaginal, and vulvar cancers.

- Gardasil 4 and Gardasil 9 are the vaccines that protect against both the high and low risk subtypes of HPV. They are licensed for use in males and females age 9-26, but if you aged above 26, you can still discuss with your doctor about receiving the vaccination.

-Ideally, the HPV vaccine should be taken before you are sexually active in order to get the most protection from the vaccine.

-The vaccine is given in a series of 3 injections over 6 months and is known to be a safe and well tolerated vaccine

I hope you find this information useful!

Wei Sheng

Dermatologist

Sexual Health Specialist

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