The dangers of taking the second HPV shot early

The HPV vaccine consists of three injections and needs to be administered within half a year. Since the first injection can be given at the time of your own choice, and the second and third injections are given 2/6 months after the first injection, many people may want to travel to and from Hong Kong three times. So, can the second injection of the HPV vaccine be given earlier?

The editor has learned that the second shot of the HPV vaccine cannot be given in advance but can be delayed by two weeks.

There are currently three HPV vaccines on the market: Cervarix, a bivalent vaccine produced by GlaxoSmithKline, prevents two types of HPV viruses. This vaccine is only suitable for women over 9 years old and was about to be launched in China, but in November last year, it was announced to be withdrawn from the international market due to insufficient market demand. The quadrivalent vaccine Gardasil 4 is produced by Merck and can prevent infection by four other types of viruses. Both men and women over the age of 9 can be vaccinated.

HPV6, HPV11, HPV16, HPV18, HPV31, HPV33, HPV45, HPV52, and HPV58 are nine types of virus infections. Men and women over 9 years old can be vaccinated. The nine-valent HPV vaccine is widely used in Hong Kong, Macao, Taiwan, the United Kingdom, Australia and other regions as well as my country.

The nine-valent HPV vaccine requires three injections, one in the 0th, 2nd and 6th month respectively. You can get the vaccine as long as you are not allergic to cream cheese or protein, do not have a cold or fever, and are not pregnant. The pharmaceutical company guides that you can plan to get pregnant after getting the vaccine. If you have undergone surgery, you can get the vaccine one month after resting after the surgery (except for major surgery, it is best to consult a doctor before getting the vaccine).

HPV vaccine can protect against at least 70% of HPV virus infections and can produce a large amount of antibodies in women's bodies to resist infection. The nine-in-one vaccine now released can prevent 90% of cervical cancer, 85% of vaginal cancer, 80% of cervical precancerous lesions, 50% of low-grade cervical lesions, 90% of genital warts, and 95% of anal cancer.

What are the harms of taking the second shot of HPV vaccine early?

There are no side effects if the second dose of the HPV cervical cancer vaccine is injected early. The HPV vaccine is very safe. The vaccine only stimulates the body to produce antibodies and generally does not cause any harm to the body. The correct HPV vaccine schedule is three vaccinations in October, February, and June. Due to individual differences, early injection may cause the drug to fail to achieve the expected efficacy. Therefore, it is recommended to follow the appropriate procedures when getting the vaccine. After the vaccination, regular gynecological examinations are still required.