"Say it." The doctor nodded and made a "please" gesture towards her.

"Well, have you ever played tower defense?? The immune cells of our human body are just like the defense tower guarding the base. Those HIV viruses are the soldiers who attack the defense tower one after another. HIV carriers, the HIV virus in the body, constantly attack our immune cells, that is, the defense tower. If the defense tower is dismantled, the whole game will end. Game-over, the human body itself will lose the role of immune cells So as to make all kinds of diseases spread in the human body, and eventually lead to AIDS. "

Cheng Shitong thought for a moment and used a small tower defense game that everyone would play to compare.

"Well." While listening, the doctor nodded and said, "the explanation is very vivid."

"At present, the treatment for HIV carriers is to send guards to kill the soldiers who want to dismantle the towers, while constantly returning blood to their defense towers." Cheng Shitong looked at the doctor with some embarrassment and said with a smile: "of course, I don't understand the specific treatment methods and the drugs used. But if we insist on such treatment, as long as our own immune cells are not captured and the defense tower has not collapsed, HIV carriers can continue to live for several years or even decades."

"Ha ha ha ha, the little girl has studied it?" When the doctor heard Cheng Shitong talk about the treatment, he couldn't help laughing.

"Yes When I learned this knowledge in biology class before, I checked the materials by the way... " Cheng Shitong looked at the doctor with some embarrassment, only felt that he was a bit of a teacher.

"You are quite right, although not from a professional point of view to explain, but as ordinary people, can understand this level of HIV is also very good." The doctor nodded with a smile and said to Cheng Shitong: "since you know so much about HIV, you should know its transmission route?"

"Yes." Cheng Shitong nodded: "there are mainly three ways of transmission, sex transmission, blood transmission and mother to child transmission. Of course, those who take drugs and use intravenous syringes can also transmit HIV, but they will not be transmitted through the respiratory tract and digestive tract. That is to say, shaking hands, hugging, dining together, and kissing will not be infected with HIV. "

"You already know so well, why ask me if you two can kiss?" The doctor reached out and pushed the glasses on the bridge of his nose. He looked at her funny and asked.

"Then he doesn't believe it." Cheng Shitong shrugged his shoulders helplessly, pointed to Gu Ning and said, "he must keep a certain distance from me."

The doctor turned his head and his wise eyes fell on Gu Ningshu.

His delicate pale cheek, because of the emergence of a faint blush, looks much healthier.

The doctor said with a smile: "he is also for you, generally speaking, kissing will not infect HIV, but if there are bleeding wounds in both sides of the mouth, or oral ulcers, and ulcers have broken skin, then kissing may have a certain probability of HIV infection."

"Yes, you see." Cheng Shitong reached out and poked Gu Ningshu. His voice was clear and crisp: "I don't have a wound in my mouth, and I don't have an oral ulcer!"

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