Gu Yanan frowned, this situation is more serious, it is necessary to report to the relevant departments, and organize personnel to carry out physical mosquito control actions on mosquitoes in the Crescent Bay Wetland Park in a timely manner, especially the villagers in nearby villages should know the current situation of the epidemic, and mobilize the villagers to carry out mosquito control actions at home and around the village, and the infected livestock should also be treated in time to prevent the further spread of the epidemic.

Based on the test results, Gu Yanan wrote another epidemic report on the formation of a natural foci of the West Nile virus in the Crescent Bay Wetland Park, and handed it over to Director Yang.

At the same time, contact the health department of the CDC to sanitize and control mosquitoes in and around the wetland park.

Although the natural foci of the West Nile virus in the Crescent Bay Wetland Park have been formed, although this matter has been confirmed, when was this foci formed? And why was it formed? Haven't investigated yet.

In the emergency office, Gu Yanan pondered various possible reasons.

Wang Xiaoxiao handed over the information on West Nile virus infection cases collected in the past two days to Gu Yanan.

Gu Yanan looked through them one by one, and Wang Xiaoxiao explained on the side, "These cases were downloaded by me on the epidemic system, and their epidemiological histories were asked by me to come from the CDC in each jurisdiction, because I didn't have authority, so I contacted the national CDC in the name of Sister Yanan, and after reporting the situation of the epidemic, they gave me permission. ”

Wang Xiaoxiao originally expected to be able to report all the medical record information to Gu Yanan within one day, but she didn't expect it to take two days so long, so she seemed to explain to Gu Yanan unintentionally.

Gu Yanan didn't speak, and kept looking down at the medical record information.

Wang Xiaoxiao couldn't figure out what Gu Yanan was thinking, and continued to explain, "We had a case of imported West Nile virus infection in Lianhai City last year, the man is named Wang Jianjun, 42 years old, a seafarer, who was found to be infected with West Nile virus after returning from going to sea last summer, and was discharged after a week of hospitalization, but the place where he entered the country was the customs of the next province, and the place where he received isolation treatment was also in the next province, and he returned to our Lianyungang City after being cured. ”

Looking through the medical records of Wang Jianjun again, I found that his current place of residence is in Binhai District, and it is Wangjia Village, near the wetland park investigated by the disease control.

Gu Yanan immediately found the villagers' information collected during the physical examination of the villagers in the village yesterday, and found Wang Jianjun's information.

Wang Jianjun's nucleic acid test result is negative, which means that he does not carry the West Nile virus in his body now, he has been cured, and he has not been infected recently.

A year ago, residents of villages near the Crescent Bay Wetland Park reported a case of West Nile virus infection, and although it was an imported case, a year later the Crescent Bay Wetland Park formed a natural foci of the West Nile virus, and there is always some kind of connection between this.

The place where Wang Jianjun entered and received quarantine treatment was in the next province, and he returned to Lianhai City after he was cured. On the surface, Wang Jianjun has nothing to do with the outbreak of the West Nile virus in the Crescent Bay Wetland Park, but Gu Yanan feels that there must be some other connection between them.

Gu Yanan put down Wang Jianjun's medical records and stood up from his desk, "Go to Wangjia Village again, and meet this Wang Jianjun." ”

——

2:20 p.m.

Binhai District, Lianhai City, Wangjia Village near Crescent Bay Wetland Park.

Gu Yanan took Xiao Chu and drove the on-site flow shunting car and stopped at the entrance of Wangjia Village.

In the village, there were already people from the district disease control to guide the villagers to disinfect the external environment and eliminate mosquitoes, and Gu Yanan inquired about the specific location of Wang Jianjun's house from the villagers and looked for it along the village road.

Wang Jianjun's home is a typical rural house pattern in Lianhai City, with red tiles and white walls, black wooden doors, and a wooden fence outside the courtyard wall to form a livestock shed, raising chickens, ducks, and a few cattle and sheep.

The black wooden door was open, and there were people in the house.

Gu Yanan symbolically knocked on the wooden door and shouted, "Is there anyone?" ”

"Hey...... Come on. ”

Someone in the room responded, but no one came out yet.

Taking advantage of this gap, Gu Yanan carefully looked into the courtyard and found that there were two budgies in this courtyard.

Xiao Chu: "I have been to this yard with the people of the district disease control, and I have also taken samples for these two parrots, and the laboratory has also tested them, no problem." ”

Gu Yanan remembered that when he came to the village to take samples before, several people were divided into three groups and sampled the environment of the villagers' homes separately.

Soon, a middle-aged man in his 40s walked out of the room, with dark skin and a strong physique.

When the middle-aged man saw the outfit on Gu Yanan and his party, he only knew that it was a person from disease control, and then saw Xiao Chu next to Gu Yanan, and recognized him as the person who came to the house to take samples before.

"Why are you here again? Where is it to be checked this time? The middle-aged man asked.

Gu Yanan didn't answer, but asked rhetorically, "Are you Wang Jianjun?" ”

"yes."

"I have a few questions for you." Gu Yanan showed his work card and continued to ask, "Were you confirmed by the hospital to be infected with West Nile virus last summer?" ”

"yes, how do you know? I didn't do the treatment in Lianhai City at that time, I was treated in isolation at the provincial hospital next door, and I didn't go home until I was cured, and I didn't tell anyone about it. ”

Gu Yanan continued to ask, "I would like to know about your situation before and after your illness, especially your experience before you entered the next province through customs. ”

"I am a seafarer, often go to sea, that time I came back from Africa, stayed at sea for half a month, from the customs of the next province to the shore, after going ashore, I was found to have a fever, and was isolated in the hospital on the spot, and it was found out that I was infected with the West Nile virus, but I didn't have a big deal, and I was cured for more than a week."

"Which ports in Africa have you visited? Did you go ashore? ”

"I've been to several ports and gone ashore, but I can only move in the dock and can't go out, so I bought some local products from the locals in the dock."

"Have you ever been bitten by a mosquito in the African docks? What souvenirs have you bought? ”

"African mosquitoes are big and numerous, and they must have been bitten. As for the souvenirs, I didn't buy much, most of them were food, and I also bought a few local parrots, which were very beautiful, but unfortunately they flew away after coming back. ”

"The parrot brought back from Africa flew away? Where to fly? Gu Yanan asked nervously.

"How do I know where they flew? It was raised in the yard for less than two days, but the cage accidentally overturned, and several parrots ran away. I guess I flew into the wetland forest in front of the village, but I can't find it anyway. ”

"How many African parrots have not been inspected by the quarantine department?"

"No, I just bought parrots privately from dock dealers, there is no certificate, no invoice, and of course it will not be inspected by the port quarantine department, it is normal for seafarers like us to buy something privately, and the control is not so strict."