The process of synthesizing the new virus did not go well, so Mike gave Gu Qingcen the idea to take advantage of the resurgence of the Ebola virus to go to the primeval forests of Africa to find a new highly pathogenic virus.

Gu Qingcen went to Africa again.

This time, he met Gu Yanan, whom he hadn't seen for 7 years.

Although he has not appeared in front of Gu Yanan in the past 7 years, he has been secretly paying attention to Gu Yanan's news.

He knew that after graduating with a doctorate abroad, she stayed in the institute as a postdoctoral fellow for another year, and then returned to China at the urging of her mother.

She returned to her hometown of Lianhai City and successfully entered the Municipal Center for Disease Control and Prevention, and became the director of the emergency office because of her excellent work ability.

He also knew about her sea-crossing bridge accident, and knew about her encounter with Nan Hanfei, blind date, and the disease control task to solve together.

also knows that she hugged Nan Hanfei at the airport before coming to Africa.

In the Ebola epidemic area of Africa, Gu Yanan was attacked by the locals when he was dealing with the epidemic, and in order to save his sweetheart, Gu Qingcen showed up.

Gu Yanan was shocked by his sudden appearance.

He wanted to find an opportunity to leave again, but Gu Yanan unfortunately contracted the Ebola virus and had to return to China for medical treatment.

Gu Qingcen was worried about Gu Yanan's safety and returned to China with her.

After more than 40 days of treatment, Gu Yanan slowly recovered.

Mike has been paying attention to Gu Qingcen's actions, and when he found out that Gu Yanan was infected with Ebola virus and was cured, he decided to let Gu Qingcen find a treatment plan from Gu Yanan's side, and used his relationship with Gu Yanan to find rare and highly pathogenic strains from the local CDC's P3 laboratory.

Gu Qingcen knew that even if he didn't agree, Mike would find someone else to steal the fungus strain, and then the result would be worse, and it might hurt Gu Yanan, so he agreed.

He first helped Gu Yanan solve a new bunyavirus epidemic, and then successfully entered Gu Yanan's side to work with this credit.

In the process of getting along with Gu Yanan, solving various disease control tasks again and again, he seems to have returned to the sunny boy 7 years ago.

He decided to abandon the human cleansing program.

But the bioterrorist organization had been formed, and he wanted to stop, but someone else pushed him forward.

Mike first sent his younger brother David to urge Gu Qingcen's action.

David came to Gu Qingcen's bachelor apartment late at night, intentionally or unintentionally mentioned Gu Yanan, and told him that the poisonous cucumber and blood Gu invasion incident that happened in Lianhai City before was all because of his participation.

This infuriated Gu Qingcen.

Gu Qingcen anonymously reported to the police the laboratory base located in the abandoned chemical plant, but David found and cleaned up the scene in time.

When the police arrived at the scene, they found nothing, but this aroused Nan Hanfei's suspicions.

David wanted to get past Gu Qingcen and send someone to the CDC's P3 lab to steal the strain.

Gu Qingcen found out that he solved David, threw his body and burned Xianghe, and at the same time found out that the person sent by David was a new experimenter who had just been hired into the P3 laboratory of the CDC not long ago.

He promptly destroyed the P3 laboratory's strain library, solved the David's undercover agent at the CDC, and disguised the scene as if the line was aging and caused an explosion.

Mike found out that his younger brother was missing, came to China, and appeared in front of Gu Yanan and Gu Qingcen under the cover of being a foreign teacher in a university town.

Mike activated the laboratory on Yanwei Island and spread Shigella brought from abroad in the mountain spring water in Nanshan Town to cause diarrhea to observe the killing effect of the laboratory-grown strains.

Gu Yanan discovered that the epidemic in Nanshan Town was an artificially released strain through gene sequencing, and told Nan Hanfei about this situation in time.

Gu Qingcen knew that what he had done before would soon be discovered by Gu Yanan, and he also knew that Gu Yanan would definitely not agree with his previous approach, so he wanted to terminate the human cleansing plan and disband this bioterrorist organization.

After injecting Gu Yanan with the vaccine he developed, and putting all his research materials and experiences in the past few years into a USB flash drive and handing them to Gu Yanan, he came to Swallowtail Island to find Mike to solve the whole thing.

In the laboratory on Yanwei Island, Mike reprimanded Gu Qingcen for betraying their beliefs, and he wanted to kill Gu Qingcen, but was killed by Qingnan beside him.

Gu Qingcen let Qingli leave, and then called the police and lured Nan Hanfei to Yanwei Island.

He confessed his last words to Nan Hanfei, and let Nan Hanfei witness him die in the fire and disappear in this world forever.

In the USB flash drive that Gu Qingcen left for Gu Yanan, he recorded a farewell video, at the end of the video, he told Gu Yanan, "Yanan, you have to believe me, I didn't want to hurt anyone, I killed David and Mike, just because I was sick, I inherited my mother's Huntington's disease, and I already had the initial symptoms when I left you at the age of 23, my hands will tremble involuntarily, I am easily provoked, a little little thing will make me have the urge to kill, and at the same time I am also very depressed, depressed and want to commit suicide, I even want all mankind to bury me, but after meeting you this time, all the depression and all the irritability have disappeared, which may be the result of my treatment, but I believe that it is because of the result of my encounter with you.

I left you 7 years ago and I regret it.

If I hadn't left you, but told you about my illness and actively received treatment, maybe it wouldn't be as tragic as it is now.

But now that all is over, there will be someone better to protect you in my place when I'm gone.

What kind of person I am, how I live, and how I die, only I can decide.

Dear Yanan, dear family, I am leaving, please don't feel sorry for me, because it is my choice. ”

Gu Yanan showed the farewell video left by Gu Qingcen to Gu's father, Gu's mother and brother Gu Jiashu.

Gu's mother burst into tears, "I didn't expect Qingcen's child to have experienced so much in 7 years, he actually inherited his mother's disease, he should have told us, we will face it with him, it's all our fault, we cared too little about him at that time......"

Gu's father was also very sad and comforted Gu's mother, "This child happened to be studying abroad when he got sick, and we were not around, so God will make people." ”

Gu Jiashu: "Fortunately, the terrorist organization was disbanded in time, and the police also cleaned up the remaining laboratory bases, so there was no big mistake, and Uncle Gu's family can be reunited under Jiuquan." ”

Gu Qingcen's bones were lost in the explosion in the Yanwei Island laboratory, so Gu Yanan packed a few clothes from Gu Qingcen's single apartment and erected a clothed mound for him next to the grave of Uncle Gu and Aunt Gu, so that it could be regarded as a family reunion.

On the day of the memorial service, there was a light rain.

Gu Yanan's family made a simple memorial in front of the clothed mound.

After the memorial service, several people left with umbrellas.

In the rain, in the woods not far from the clothed mound, two figures, one tall and one short, stood among them......

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