Vaccination is directed against a pathogen, such as a virus or a bacterium, and the occurrence of certain cancers is associated with certain viral and bacterial infections. The current evidence is mainly hepatitis B virus (HBV) and hepatitis C virus (HCV) and primary hepatocellular carcinoma, human papillomavirus (HPV) and cervical cancer, Helicobacter pylori and gastric cancer. Prevention of such cancers associated with viral and bacterial infections can begin with the prevention of infections by these viruses and bacteria.
Liver cancer is vaccinated with hepatitis B vaccine to prevent hepatitis B virus infection, thereby preventing primary liver cancer. Chronic hepatitis B is a major risk factor for primary liver cancer. Prevention of hepatitis B virus infection is the most effective preventive measure for liver cancer - and the most important measure to prevent hepatitis B infection is to vaccinate hepatitis B. In addition to vaccination, it is important to have personal hygiene protection, reduce unnecessary blood transfusions, and avoid unclean injections.
Cervical cancer is inoculated with HPV vaccine to prevent human papillomavirus infection, thereby preventing cervical cancer. The human papillomavirus (HPV) vaccine, also known as the cervical cancer vaccine, has been marketed in China last year and can be used for the prevention of cervical cancer. Women who are vaccinated with HPV before starting sexual activity are important measures for cervical cancer prevention. However, it should be noted that the HPV vaccine has no therapeutic effect on existing HPV infection and HPV infection-related diseases, that is, it is a preventive vaccine, not a therapeutic vaccine, and is not used to treat cervical cancer. In addition, vaccination is not omnipotent. It does not mean that cervical cancer will not be obtained when vaccinated. Because cervical cancer vaccine is only for some HPV subtypes, it cannot prevent all HPV virus types, whether or not they have been vaccinated with HPV. Vaccines should be regularly screened for cervical cancer. To prevent HPV infection, in addition to vaccination, it is also important to do personal protection. Avoid unclean sex, stay away from unsafe sex, fix sexual partners, and don't mess.
Gastric cancer removes Helicobacter pylori (Hp) infection and, if necessary, vaccinates to prevent gastric cancer. The Hp infection rate is actually very high. Not all people infected with Hp will be treated. It is generally recommended for people with symptoms, such as those with stomach discomfort, gastritis, and gastric ulcer. It is recommended to perform Helicobacter pylori detection, as appropriate. Standardized anti-Helicobacter pylori treatment.
In 2015, the Third Military Medical University developed the world's first Hp vaccine, which is undergoing clinical research. It is an oral recombinant H. pylori vaccine. The results suggest that the vaccine has good safety and immunogenicity and can be effective. Reduce the incidence of gastritis, stomach and duodenal ulcers and gastric cancer caused by the infection of the bacteria. If it is officially listed, it will be of great value in preventing gastric cancer caused by Helicobacter pylori. (Pan Zhanhe, deputy director of the Oncology Department of Zhongshan Hospital, Xiamen University)
Source: Health Times
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