Gu Yanan began to ask Zhang Zixin's parents, "Do you know that Zhang Zixin was a leprosy patient before his death?" ”

Zhang Zixin's mother shook her head in surprise, "I don't know, our family Zixin has always been a healthy and lively girl, how can she be a leprosy patient?" ”

Gu Yanan explained, "After we tested Zhang Zixin's body sample, it was determined that she was infected with Mycobacterium leprae before her death.

The incubation period of leprosy bacilli in humans varies from months to years.

Judging from Zhang Zixin's physical condition, she has been infected with leprosy bacilli for at least half a year.

Leprosy is contagious, and since Zhang Zixin is a leprosy patient, people who come into contact with her may be infected with leprosy.

We came here this time mainly to ask where Zhang Zixin went half a year ago? Who have you come into contact with? For example, have you ever volunteered in a leprosy village? ”

Zhang Zixin's mother recalled and said: "Zixin usually likes to volunteer, but the places she often goes to are some nursing homes around the city, and I have never heard of leprosy villages.

Zixin graduated from college last year, and after graduation, she did animation design in a very famous game company in our city, and now she has just worked for more than a year, usually except for going to work, she doesn't even have a boyfriend, and occasionally goes out to dinner with her colleagues, and her father and I are more strict with her, what friends she has made, I basically know with his father, Zixin will not make bad friends.

If the only anomaly is that in recent days, she said that she liked a netizen and was going to meet this weekend, but the police also said just now that Zixin's death had nothing to do with that netizen.

You said that my family Zixin is usually so good, and she has no grudges against anyone, how could anyone kill her......"

Zhang Zixin's mother couldn't help but shed tears when she said this.

Lu Li also looked sad.

Gu Yanan didn't have any special reaction when she saw Zhang Zixin's parents seeing Lu Li, knowing that the two old men didn't know that the netizen Zhang Zixin was dating was Lu Li beside her.

Facing Zhang Zixin's mother's tears, Gu Yanan was also very sad, but in this case, any words of persuasion seemed pale and weak.

Gu Yanan waited for a while, waiting for Zhang Zixin's mother to stabilize a little before continuing to ask: "Have you heard that there are lepers among the people Zhang Zixin came into contact with?" ”

Zhang Zixin's mother's tears had not yet been wiped away, and Zhang Zixin's father replied to Gu Yanan's question, "Leprosy was very common in the older generation before, but now it is basically gone. ”

Gu Yanan thought to himself, in my country, leprosy is transmitted from person to person, since Zhang Zixin has not been in contact with leprosy patients, how did the leprosy bacillus on Zhang Zixin's body come about? Or Zhang Zixin was in contact with someone who had leprosy before his death, but that person did not know that he was infected with leprosy bacilli.

Gu Yanan was speculating on various possibilities in his heart, Zhang Zixin's father seemed to remember something, and suddenly said: "I remember that half a year ago, Zixin went abroad with her colleagues to play for a few days, could it be infected from abroad?" ”

"Which country did you go to?"

"Country M."

Gu Yanan remembered that he had seen in the literature that at the beginning of the 21st century, the total number of leprosy patients in country M was about 3,600, and with such a large land area, these thousands of people would not be met by Zhang Zixin so coincidentally, right?

But if Zhang Zixin is really infected abroad, it will be more troublesome to investigate, and he needs to contact the CDC in country M for help.

Gu Yanan asked again: "Do you know the itinerary of Zhang Zixin and her colleagues during their time in country M?" What attractions have you visited? Who have you been exposed to? ”

Zhang Zixin's father: "This Zixin didn't tell us, she only said that she was going to go abroad with her colleagues for a few days, or after she came back, I told her mother that she went to country M with her colleagues." ”

Gu Yanan felt that he couldn't learn more from Zhang Zixin's parents, so he decided to take the next step, so he asked: "We want to collect some specimens related to Zhang Zixin at your house, is it okay?" ”

"Yes, that's the house where Zixin lives, and nothing in the house has been touched since she left." Zhang Zixin's father pointed to a bedroom facing south.

Gu Yanan: "Because you are Zhang Zixin's close contacts, we have to conduct a routine physical examination on you and collect blood. ”

"Okay, let's cooperate." Zhang Zixin's parents agreed very happily.

Gu Yanan arranged for Lu Li to collect blood from Zhang Zixin's parents, while she and others conducted examinations and samples in the house.

Nan Hanfei and the two policemen couldn't help, so they could only watch the disease control personnel work there.

Gu Yanan pushed Zhang Zixin's room open.

This is a typical girl's bedroom, decorated with warm and cozy, beige sheets and quilts, pink beaded curtains hanging on the bed, a set of computer desks and chairs next to the bed, a glass sliding door on the south side, and a balcony outside the door, on which there are several pots of green plants.

Gu Yanan pushed open the sliding glass door and walked into the balcony.

The sun shines through the glass on the balcony, which is very warm, and the flowers and plants on the balcony grow luxuriantly, and you can see that the owner takes good care of these flowers and plants.

Gu Yanan's gaze suddenly fixed on a glass box hidden by flowers and plants.

The long glass box is covered with a layer of sawdust, and there is a small slide inside, and a rotating roulette wheel is the kind of toy used to raise small mice in the flower and bird market.

A pink shadow hides in sawdust.

Gu Yanan tapped lightly on the glass box, and a pink mouse in armor emerged from the sawdust.

"Armadillo?!" Gu Yanan couldn't help but exclaim.

Nan Hanfei rushed over when he heard the sound, approached Gu Yanan, stared at the pink animal in the glass box, and asked in surprise, "What is this?" It looks so weird! ”

"The armadillo, also known as the armoured squirrel, is one of these subspecies that has a nice common name - the pink fairy armadillo, which is a rare and endangered species that grows in the Americas."

"If it's an endangered species, how can it be here? Also, is this little animal related to Zhang Zixin's leprosy? ”

Gu Yanan stared at the pink creature in the glass box, his brows furrowed slightly, "Armadillos can spread leprosy, as for why he is here, I have to ask Zhang Zixin, now I can only ask Zhang Zixin's parents." ”

Nan Hanfei originally wanted to touch the little armadillo in the glass box with his hand, but when he heard Gu Yanan say that this little thing could actually spread leprosy, his outstretched hand immediately retracted.

Nan Hanfei: "This little thing looks very cute, and the name is good, it can even spread leprosy, but I have checked before, leprosy seems to only spread in humans, and I don't know what animal reservoir there is." ”

Gu Yanan: "That's already the previous knowledge, in 2011, a research team published a document that found Mycobacterium leprae in armadillos, and proved that armadillos are related to the local human leprosy epidemic. ”