When he reached school age, his eldest brother sent him to a missionary school. The active Qin Na has no interest in theological works, and her biggest hobby is "playing". He often roams with his friends in the hills, valleys, grasslands and Woods near Berkeley Village. He likes to dig out bird nests and deliberately catch all kinds of insects and small animals. He is also interested in plant seeds, minerals and fossils. He also used Linnaeus's binomial nomenclature to classify his collected specimens. His hut is simply a combination of zoo, botanical garden and storage room.
Washburne, the principal of Qinna Primary School, is a strict conservative. He doesn't like students asking all kinds of questions and opposes students reading extracurricular books other than theology. He thinks that it is a complete waste of time and even dangerous for Qin Na to read biological works. Once, he called Qin Na to the office and said to him sternly, "What you are thinking now is very dangerous. I have to remind you that science and religion are in direct opposition. You'd better not touch science. Your stupid and dirty hobby will offend God! "
In such a school, Qin Na feels exhausted, unwilling to study, and often skips classes. Seeing that he was really not interested in theology, Big Brother respected his wishes and asked him to learn medical knowledge from Ludwig, a surgeon in Soderbury. Qin Na was only 13 years old at that time. In Ludwig's home, Qin Na began her eight-year apprenticeship. Although the life of an apprentice is very hard, Qin Na thinks that she can learn a lot of useful knowledge, so she finds it very interesting.
1770, under the strong recommendation of Dr. Ludwig, Qin Na came to study with Hunter, the most famous surgeon in London. Three years later, Qin Na returned to Berkeley Farm and began her medical career.
As a doctor, Chen Na can go down in history because he found a cure for smallpox, that is, vaccination.
At one time in European history, smallpox was called "a faithful accomplice to death". As long as one person has smallpox, terror will cover the whole region and country, even the whole of Europe. Smallpox is very contagious. Even slight contact can infect people around you with smallpox virus, and it spreads very fast. People often talk about the discoloration of smallpox.
For many years, there has been no smallpox in the Berkeley Valley where Qin Na is located. One day, suddenly came the news that a person was infected with smallpox. This has caused widespread panic in the whole valley and nearby residents, and it seems that a catastrophe is imminent.
As a local doctor, it is his bounden duty to take treatment measures for patients. But what bothers him most is the care of patients, because nurses are the most susceptible to infection. Ordinary people can't take care of smallpox patients, so they have to find people who have suffered from smallpox before and have now recovered. But such people are really too few. The patient's family finally found the milkmaid Jenna saw that her skin was smooth and fair, and there were no pits and spots on her face, so she decided that she had never had smallpox before, so she didn't agree to let her take care of the patients.
"I really haven't had smallpox, but I have had vaccinia. So it will definitely not be infected with smallpox. " The milkmaid said firmly.
The milkmaid's words reminded Qin Na of Ludwig's "dairy superstition". That is, people who have been exposed to cattle for a long time are rarely infected with smallpox. So he agreed to let the milkmaid take care of the patient and explained to her what to pay attention to.
A few months later, the patient finally recovered, leaving a pockmarked face on Qin Na's face that would never disappear, while the milkmaid was safe and sound, and her skin was still white and tender. This incident aroused the mystery he had hidden in his heart for many years: what is the relationship between smallpox and vaccinia? How to solve this mystery? Jenna remembered hunter's teaching. He decided to start with the investigation. He went to several ranches and asked some old ranchers about cowpox in detail, such as how people were infected with cowpox. Have people who have been infected with vaccinia ever got smallpox again?
The investigation was time-consuming and laborious, but after years of hard work, he finally reached a theoretical conclusion: people infected with vaccinia will not get smallpox. Theory needs to be tested by practice. So Qinna posted an advertisement to collect volunteers who had been vaccinated and injected them with smallpox virus for experiments. Finally, five volunteers were found. After injecting them with the virus for half a month, the volunteers did not have any adverse reactions. Six months later, they are still safe and sound. Qin Na's research work has achieved great success.
However, Qin Na wanted to inoculate the human body with vaccinia first, observe its reaction, and then inoculate smallpox for theoretical verification, but no one dared to do so, so his research work had to be temporarily stopped.
1796 In April, a middle-aged woman took her 8-year-old son Jamie Phipps to Qin Na's clinic and asked to do experiments on her son. Jenner was greatly moved and said excitedly, "You are great! Do you know many people, including professional surgeons, don't believe my theory? Some people think it is blasphemy, and some people think it is a cow face. "
Jenner's experiment on Jamie phipps was once again a great success. Jamie didn't have any adverse reactions after vaccination with vaccinia and smallpox. This fully proves that Qin Na's immunization method of smallpox vaccine is successful!
However, when Qin Na took the great achievements of more than 30 years of hard observation, experiment and research to the Royal Society for publication, she was met with cynicism. Although Chennault was very disappointed, he was not discouraged. He believes that science will eventually overcome ignorance. 1798, Qin Na published a scientific masterpiece "Investigation on the Causes and Effects of Vaccination" at her own expense. In the face of hard facts, stubborn people finally bowed their noble heads. French emperor Napoleon publicly encouraged all French citizens to be vaccinated, and Viennese doctor Carlo Bo Tu also vigorously promoted vaccination. In Russia, Denmark, Prussia, Italy, Turkey and even India in the East, people began to use vaccinia vaccination to prevent smallpox.
Qin Na's value was finally affirmed by the world, and the British government awarded him a science prize. 1823, Qin Na died. In order to commemorate this "nemesis" of smallpox, people specially built a huge human sculpture for him-Qin Na is devoting herself to vaccinating the baby in her arms! A sentence is engraved on the pedestal under the sculpture: Pay tribute to the heroes of the mother, children and people!