"Congratulations, Professor, we're off to a good start!"

Sitting directly across from Koch, John said with a sincere smile on his face. The willingness of the Hamburg city government to hand over two teams of police officers to Koch to cooperate in cholera control and prevention in some areas is a very big step forward for John.

With trying, there will be a chance.

It's just that Koch's face is not so good-looking, and he shook his head with a heavy face and said, "It's only a few blocks...... I really don't understand, even if we follow our plan, it will only cost some money and human resources, why not? ”

"This ......"

John narrowed his eyes slightly, and for a moment he didn't know how to comfort the big guy.

Unlike Koch, who was full of expectations, John, who had a clear understanding of the cholera epidemic in Hamburg, was not very demanding, as long as he could spread his ideas about infectious diseases and save some lives. Originally, he didn't have the slightest affection for Europe in this era, but after he really integrated into this era, he found that these beneficiaries who were originally thought to be beneficiaries of the colonial era were just a group of ordinary people, so that natural bad feeling slowly dissipated a lot......

"Professor, I'm leaving in two days."

After a moment of silence, John spoke suddenly.

After listening to John's words, Koch was shocked and hurriedly asked, "Leave?" Where are you going? ”

"No, no, I'm the only one leaving."

Shaking his head, John explained, "Mr. Ehrlich will stay and assist you and Mr. Kitasato in continuing to control the cholera epidemic, but my words ...... I'm sorry, Professor, but I'm leaving Hamburg for Berlin. ”

When these words are spoken. John's expression was very calm.

Having done what he wanted and what he could, Johann didn't see any special purpose in staying, and he certainly didn't feel obligated to stay in the city of Hamburg. In any case, even if he knew how best to prevent cholera, Hamburg was very dangerous at this time. There's no reason for him to stay here and take risks.

Koch was stunned at first about John's attitude, and then quickly calmed down.

In this era, there are countless medical scientists who have dedicated their lives to research, especially in the field of infectious diseases, and I don't know how many doctors have died on the front lines of the epidemic, nor how many have died from active exposure to these terrible bacteria. But more people avoided the disease, and many doctors in Hamburg fled the city with other ordinary people after cholera appeared.

At times like these, no one has the right to complain about anything.

Of course, Koch will not be angry about John's choice to leave, but only a little regretful. Because he has learned a lot from the young man in front of him in the past few days, and it has also brought a lot of inspiration to his research, if the other party can stay for a while longer......

"Bang! Bang bang! ”

Just as Professor Koch, who had calmed down, opened his mouth to say something, there was a sudden anxious knock on the door.

"Please come in."

With a slight frown, Koch replied in a loud voice.

The door creaked open from the outside, and Kitasato Shibazaburo walked in with a solemn face, and said in a deep voice: "Professor, I think we may be in trouble." ”

"Huh? What's going on? ”

Koch looked up in amazement. Surprised, he asked, "Is it ...... Which patients were treated? ”

John also looked at Kitasato Shibazaburo with some surprise, and was puzzled. In recent days, the hospital has seen several more patients infected with cholera. All of them were treated by Ehrlich and Kitasato Shibazaburo. The diagnosis and treatment of cholera is really not complicated, and it is easy for the two big bulls to learn, and they have mastered it thoroughly after a few days of following John. So John really couldn't think of what kind of trouble they would have!

"No, it's not the patients' problem."

Immediately shaking his head, Kitasato Shibazaburo smiled bitterly: "It's that Professor Pettenkov." He had just sent someone to me and asked me to grow and purify some Vibrio cholerae for him, but he didn't explain the reason or purpose, so he ......"

"Petenkov? He wants Vibrio cholerae? ”

After listening to Kitasato Shibazaburo's narration, Koch couldn't help but open his mouth wide.

Ever since Koch announced that he had discovered Vibrio cholerae. He and Petenkov became enemies. The opposition between Koch, the pioneer and advocate of the theory of bacterial pathogenesis, and Petenkov, who published his theory of cholera more than 20 years ago and thus became an authority on cholera, can be said to be doomed. And as Koch's popularity in Germany grew, the pressure on Petenkov naturally increased, and in order to defend his theory of soil toxin volatilization, he began to attack the theory of bacterial pathogenesis - but Koch had long been accustomed to these things, and he really couldn't figure out what Peterenkov wanted bacteria to do.

Could it be ......

The old man suddenly changed his mind and was ready to study Vibrio cholerae?

Koch was puzzled, and Kitasato Shibazaburo whispered worriedly: "Professor, you just got some recognition from the city government, and Professor Pettenkov came to you to ask for Vibrio cholerae, he ...... He couldn't have come up with some tricks, did he? ”

"This ...... Probably not, right? ”

Koch frowned again, but quickly shook his head. Although he and Petenkov have always stood on opposite sides and never shown mercy in their criticism of each other, everyone is basically academically divided between winners and losers, and rarely uses any shady tricks......

The master and apprentice were at a loss here, but John, a bystander, already knew it in his heart.

"It seems that a famous scene in the history of medicine is about to be brought forward."

Shaking his head, John had a strange smile on his face.

In the embryonic era of modern medicine, the history of the development of infectious diseases is extremely painful, in addition to the death of infected bacteria, there are also a large number of doctors who take the initiative to drink certain bacteria, just to prove their relationship with a certain disease. For example, Petenkov is one of the most famous ones, who not only drank the Vibrio cholerae that Koch gave him, but also survived very lucky.

In fact, he was definitely not the only one who drank Vibrio cholerae.

In the history of medicine, including Petenkov's students, more than 40 physicians have voluntarily drunk Vibrio cholerae just to prove the theory that cholera is causative, or to prove that cholera is not caused by Vibrio cholerae - Petenkov is definitely not the only fool, he is just the luckiest one.

Thinking of this scene in history, John shook his head with a wry smile and interjected: "Professor, I think I may have guessed a little bit of Professor Pettenkov's thoughts. ”

"Oh? What is it? ”

Raising an eyebrow, Koch asked, puzzled.

"Perhaps...... He wanted to prove us wrong with the facts. ”

After a slight hesitation, John sighed lightly and said, "The city government's support for your attempt may have put pressure on Professor Pettenkov, so I have a bold guess, since Professor Pettenkov insists that Vibrio cholerae alone cannot cause the occurrence of cholera disease, then he is looking for the bacteria you want to cultivate......"

"God!"

When he heard this, Koch finally understood, and suddenly stood up and exclaimed: "Is it ...... Is that guy trying to use people? (To be continued.) )