Explore the "Four Big Monsters" of sexually transmitted diseases!

　　A strange one: People have almost no innate immunity to sexually transmitted diseases that is sufficient to prevent infection skin Mucous membranes are natural to the human body disease The defensive barrier means that even if people come into contact with countless harmful microorganisms every day, they are rarely infected. Even if the skin is broken, they will recover naturally in three to five days. Most sexually transmitted diseases are infected through the genital mucosa. The mucous membrane has almost no resistance to sexually transmitted disease pathogenic microorganisms. Once infected, the disease is inevitable.

　　Two monsters: Not valid vaccine Meningococci and gonococci belong to the Neisseria genus and have many similar characteristics. However, meningococci vaccines have been available for a long time, and despite efforts, gonococcal vaccines still cannot be used in practice. The application of smallpox vaccine has made smallpox extinct in the world. Measles vaccine, polio vaccine, typhoid vaccine, cholera vaccine, etc. all play an important role in preventing infectious diseases. However, there is no effective vaccine to prevent sexually transmitted diseases so far.

　　Three monsters: Strong acquired immunity cannot be produced after illness. Many infectious diseases can be immunized after illness. Some immunity can last for life. If you are exposed to the microorganism again, you will not get sick again. Sexually transmitted diseases, on the other hand, can be re-infected and re-infected.

　　Four monsters: Sexually transmitted diseases cannot be transmitted through insects. Regardless of blood-borne STDs or STDs transmitted through mucous membranes, they cannot be transmitted through insects. There are many diseases transmitted by insects, such as malaria and Japanese encephalitis. Mosquitoes only need to bite the patient first and then bite them. healthy It is possible for people to get sick. However, even blood-borne STDs cannot be transmitted by mosquitoes, and their mechanisms have not yet been elucidated.