Zhang You found out that he was still receiving treatment in the People's Hospital, and Gu Yanan called his brother Gu Jiashu and asked his brother to help ask about the situation.

A few minutes later, his brother Gu Jiashu called back, "Little sister, just now I went to ask Zhang Youfa and told him how serious the matter was, and he admitted that his son had sent him tropical fish from Africa many times, and it was not through the normal mail channel, but by asking someone to transport it back privately by sea."

Because he was afraid of affecting his son, he didn't dare to tell the people in disease control before.

He raised several batches of small tropical fish that he brought back, and the dead fish were thrown directly into the garbage can, and the water and aquatic plants were poured into the lotus pond in front of the yard.

I specifically asked if there were any strange-shaped blister snails in those aquatic plants, and he said that there were, and there were quite a few, but I didn't know that there might be parasites in them, so I didn't care.

Zhang Youfa also said that he still has a few tanks of tropical fish that have just been sent back at home, and no one has taken care of them when he has been hospitalized recently, so I don't know what the situation is, you can go to his house to check. ”

After getting specific information, Gu Yanan and Gu Qingcen found the village chief of Hetang Village and asked the village chief to lead someone to open the door of Zhang You's fortune.

Zhang Youfa has a few large tanks in the yard, which raise common koi fish, open the door of the house, and find that the fish tank in the living room is more exquisite, there are all kinds of small tropical fish inside, in addition to fish and aquatic plants in the fish tank, the heating rod is heating, the ventilation equipment is also running, everything looks very professional.

Gu Yanan approached one of the fish tanks and found through the glass that there were many small snails among the aquatic plants surrounded by the fish.

"Sure enough, there are blister snails."

Gu Yanan and Gu Qingcen collected water samples from each tank where small tropical fish were kept, and the blister snails inside were also fished out, put into sampling bags, and prepared to be taken back to the CDC laboratory.

——

Lianhai Center for Disease Control and Prevention, Emergency Office.

The water samples and snail specimens brought back from Zhang Youfa's home in Hetang Village were found to contain Schistosoma haematobium cercariae after laboratory testing, confirming that the vesicular snails adulterated in tropical aquatic plants brought by Zhang Youfa's family from Africa were the source of the outbreak of Schistosoma haematobium in Hetang Village.

Gu Yanan read all the test sheets and began to sort out the stage summary report of the Schistosoma haematobium outbreak.

The son of Zhang Youfa, a villager in Hetang Village, works in Africa, because his father likes to raise fish, and his son has taken a private connection from Africa to bring back several batches of small tropical fish, including local aquatic weeds and blister snails.

These vesicular snails, which contain Schistosoma haematobium cercariae, are transported by sea from Africa to Hetang Village.

Zhang Youfa raised several batches of tropical small fish to death, and the remaining aquatic plants and blister snails were poured into the lotus pond in front of the yard, and the suitable environment caused the snails to multiply in large numbers in the lotus pond, and at the same time, Schistosoma haematobium also multiplied in large numbers, and the lotus pond was polluted into infected water.

Mr. and Mrs. Zhang Youfa, who had been exposed to the infected water, and those who swam in the lotus pond were infected with schistosomiasis.

After the snail eradication operation, the transmission route was cut off, and the patients were actively treated, and the schistosomiasis epidemic was brought under control.

After writing the summary report, it was already dark outside, and it was already past the end of work, and only Gu Yanan and Gu Qingcen were left in the emergency office.

Gu Yanan raised his head and saw that Gu Qingcen hadn't left yet, "Brother Qingcen, why are you still here?" ”

"Wait for you to go back together after work, I know that your car has been under maintenance for the past two days, we will stop by the way, I can drive you."

The two of them now live in a small area, of course, along the way.

"Okay, just take Brother Qingcen's free ride."

Parking lot in the community where the bachelor apartment is located.

Gu Qingcen parked the car in the parking space.

After Gu Yanan thanked him and said goodnight, he went upstairs alone.

Gu Qingcen got out of the car, but did not go back to his building, but stood downstairs and looked up at the room where Gu Yanan was.

More than an hour later, until the lights in Gu Yanan's house went out, he turned around and left.

——

Gu Qingcen's room.

The moment he opened the door with the key, Gu Qingcen noticed that something was wrong in the room.

In the dark room, a figure stood in front of the window.

Gu Qingcen remained silent, closed the door very calmly, and turned on the light in the living room casually.

In the light, in front of the window stood a young man, tall, blonde and blue-eyed.

Seeing Gu Qingcen come in, the man was not panicked at all, but had an evil smile on his face, "Gu, I haven't seen you for a long time, you seem to be doing well here." ”

Gu Qingcen ignored him, but changed his slippers as usual and went to the sink to wash his hands.

The blonde man looked at Gu Qingcen's back, and the evil smile on his face deepened, "You are still as cold as before, even if you return to your hometown, there is not much change, are you still satisfied with my help?" ”

Gu Qingcen's hand movements stopped, turned his head to look at the blonde man, and asked, "This Schistosomiasis haese outbreak in Hetang Village, Lianhai City, is related to you?" ”

The blonde man nodded smugly, "Of course, how could a vesicular snail containing Schistosoma haematoba cercariae from far away in Africa appear here thousands of miles away?" It's just that I've only done a little favor, and someone is smuggling things here, and I'm just adding some ingredients. ”

Gu Qingcen approached the blonde man, his voice cold, "I once said that you are not allowed to meddle in the affairs here. ”

The blonde man smiled disappreciatively, "I'll also help you according to the boss's wishes, create some chaos here, and you can get your hands on things sooner." ”

"He's your boss, not mine, we're an alliance at most, I'll hand things over to you at the appointed time, and you don't have to worry about what I do."

The blonde man took out a small medicine bottle from his coat pocket and put it on the table, "Okay, even if it's an alliance, then it must be according to the agreement, this is the medicine that the boss asked me to bring you, it can alleviate the condition, I hope you can get it as soon as possible." ”

Gu Qingcen stared at the medicine bottle on the table, his face even colder.

The blonde man didn't pay attention to Gu Qingcen's expression, but looked out the window and continued to smile, "Just now you stood downstairs for a long time, and you saw a girl go upstairs, she is that person, she looks ......."

Before he finished speaking, the blonde man suddenly felt a chill on his neck, and then a stream of heat gushed out of his neck, he subconsciously covered the wound on his neck with his hand, and looked up at Gu Qingcen in horror.

Gu Qingcen's usually warm and jade-like face was extremely cold at this time, and a scalpel between his fingers flashed with cold light, and there were blood stains on it.

Just now, Gu Qingcen slashed the blonde man's neck with the scalpel that appeared in his hand at some point.

"This is the last warning, if you hit the idea here again, the next time the lancet will cut more than the epidermis and small blood vessels in your neck, it will directly cut your carotid artery."

The blonde man quickly recovered from his panic and judged the amount of bleeding from the neck wound, although there was bleeding, but it was not a jet, fortunately the carotid artery was not cut, otherwise he would have died here.

The blonde man knew that although the man with an Asian face in front of him had a polite appearance, the ruthlessness of his methods was terrifying, and his performance just now was obviously very angry and moved with murderous intent.

"Get out!"

As Gu Qingcen squeezed the last word out of his mouth, the blonde man quietly withdrew from the room and disappeared into the darkness.