Li Xiaoju began to recount her husband's experience at that time, "Well, the day before my husband fell ill, he came to the orchard to pull weeds that morning, and saw a big apple falling under the Gala fruit tree, with tooth marks on it, which should have just been gnawed by rabbits, and he didn't bite twice.

It's a pity that such a big apple was thrown away! He wiped it and ate the rest.

In fact, our peasant family is very economical, like this kind of apple that has been eaten half by rabbits, or half rotten apple that has fallen on the ground, we will pick it up, dig up the rotten part that has been gnawed, and the remaining part can also be sold for money, that is, to sell to the juice factory in the town to squeeze juice, although the price per catty is cheap, but that is also money.

The juice you people drink in the city is the juice of these cheap apples, like those big and good color apples are sold for a high price, how can you squeeze the juice......"

Li Xiaoju only knew that Gu Yanan asked a question, but he didn't know the deep meaning behind Gu Yanan's question, and successfully turned the topic to juice production.

In the dead grass under the gala fruit tree, a few fallen apples exude an alluring sheen and aroma.

Li Xiaoju talked for a long time, especially when it came to juice, she felt even more thirsty, picked up an apple from the grass, wiped it on her sleeve casually, and was ready to eat it.

"Don't move!" Gu Yanan shouted, Li Xiaoju was startled, and the apple was put in her mouth and didn't dare to take a bite.

Gu Yanan snatched the apple from Li Xiaoju's hand with gloves, "Don't eat the apples in the field until they are washed!" ”

Li Xiaoju nodded subconsciously, "Hmm...... I don't eat it. ”

Gu Yanan picked up another apple from under the apple tree, with fresh tooth marks on it.

Seeing this, Li Xiaoju was a little distressed, "What a good apple, it was gnawed by rabbits again." ”

Gu Yanan asked: "Did Xia Youfa eat this kind of apple before he became ill?" ”

"yes."

Gu Yanan and Gu Qingcen glanced at each other, and the two understood that tooth marks like this can not only be caused by rabbits, but also by wild mice, that is to say, Xia Youfa had eaten apples that had been eaten by wild mice before the onset of the disease, and if the wild mice at that time carried leptospira, the urine of the wild mice would contaminate the apples, which may be the way Xia Youfa was infected.

Gu Qingcen took out the sampling bag from the sampling box, carefully put the apple with tooth marks into the sampling bag, and sealed it.

Li Xiaoju saw that the two of them were acting solemnly, and vaguely realized that there was something wrong with this gnawed apple, "What's wrong?" Apple has a problem? ”

Gu Yanan: "Well, the apple you mentioned was gnawed by rabbits, and it is likely that it was gnawed by wild mice.

Wild mice can transmit a variety of diseases, and the illness that occurred in Xia You was most likely caused by eating apples that had been gnawed by wild mice.

However, this speculation has yet to be verified in the laboratory, and by the way, the fruits or other vegetables that have been gnawed by wild mice in the field must be washed and cooked before eating, and if they are not washed and eaten directly, it is easy to get sick. ”

Li Xiaoju felt afraid, "In the past, we often ate apples on the ground, and it's okay, why did something happen this year?" ”

"Wild mice have a certain carrying rate of various pathogens, and if the wild mice that have nibbled on this apple do not carry pathogenic bacteria, then the people who have eaten it will not be infected, but on the contrary, they will be infected, and it is only a matter of probability.

Often walk by the river, how can you not get your shoes wet, and there is a very high chance of being infected if you eat this kind of apple often, so don't have a fluke mentality. ”

2 p.m.

Temporary medical tent at the entrance of Xiajia Village.

After physical examination and questioning of the villagers in Xiajia Village, it was found that there were two people in the village with early symptoms of leptospira, one of whom had been admitted to the county hospital.

Gu Yanan arranged for Lu Li and Wang Xiaoxiao to go to the county hospital and another patient's home for sampling and investigation.

3 p.m.

Zhou Lao and the county disease control staff returned from several other surrounding villages, and after visiting, they found five patients with early symptoms of leptospirosis, all of whom had worked in the rice fields by the river, and their rice fields were very close to the rice fields where Xia Youfa had made his fortune.

Zhou Lao collected the specimens of the suspected patient at that time, and went to the patient's home to do the flow survey sampling, and when they returned to Xiajia Village, the specimens had been collected and the flow survey data was also complete.

4:30 p.m.

Gu Yanan and Gu Qingcen went to the rice fields and orchards where Xia You's fortune made a fortune to collect rat traps and sticky rat boards, caught 4 wild mice from the rice fields, and caught 5 wild mice in the orchard, and the mice on the sticky mouse board were still alive.

——

6:10 p.m.

Lianhai Center for Disease Control and Prevention, Laboratory.

Specimens brought back from the field in Xiajia Village were urgently tested.

Soon, the results came in.

Leptospira was detected in field mice caught in the summer fortune orchard, apples gnawed by wild mice, and field mice in rice paddies.

Two other suspected cases in Xiajia Village, as well as five suspected cases in nearby villages, were confirmed to have Leptospira infection.

The outbreak was identified as leptospira infection.

Gu Yanan fed back the experimental results to the local hospital and the county CDC in a timely manner, and at the same time made epidemic control measures.

In the next two days, Xiajia Village and several nearby villages, under the guidance of the local county CDC, mobilized the whole people to carry out the capture and eradication of wild mice.

At the same time, Gu Yanan allocated a batch of leptospira vaccine from the manufacturer to the villagers of Xiajia Village and several nearby villages for collective vaccination.

——

A week later.

Lianhai Center for Disease Control and Prevention, Emergency Office.

Gu Yanan is writing a summary report on the leptospirosis outbreak.

Xia Youfa, a villager in Xiajia Village, Guanyun County, ate apples that had been eaten by wild mice while working in an orchard.

Wild mice carry leptospira, and the apples that have been eaten are contaminated with this pathogenic bacterium, so Xia Youfa is also infected with leptospira.

After investigation, it was found that the wild mice in the orchards and rice fields where Xia Youfa had made his fortune and in the nearby rice fields carried leptospira.

Urine from wild rats carrying pathogenic bacteria contaminates paddy fields and orchards.

Villagers in Xiajia Village and nearby villagers were infected when they came into contact with contaminated paddy fields and orchards while working in rice paddy fields and orchards.

After symptomatic treatment, rodent eradication and vaccination.

Xia Youfa and several other villagers were cured and discharged from the hospital.

There were no new cases of leptospirosis in Xiajia and several nearby villages, and one outbreak of leptospirosis was brought under control.

After writing the summary report, Gu Yanan wrote another tweet about the prevention of leptospirosis, which was posted on the website of the CDC.

"Yanan, do you have time at night? I want to invite you to dinner, I have something to talk to you about, it's a serious matter. ”

In the past, Nan Hanfei always smiled on the phone, but this time his tone was serious and serious.

Gu Yanan subconsciously agreed, "I just have time." ”

"Okay, I'll pick you up after work."