My eldest brother and I glanced at each other, and we both knew in our hearts that wearing a mask for such a serious virus was better than nothing. But fortunately, our operation was also smooth, although we ate a few closed doors, but we quickly drew 20 tubes of blood. I said goodbye to the girl at the front desk and prepared to take the elevator back to 2401.

At this time, the eldest brother suddenly asked, "Have you been at the front desk before?" ”

The girl was asked coldly by him, and she was also a little trembling: "Originally, I was on the night shift today, and I had been resting in the staff dormitory before. But the leader suddenly came to me to work, saying that the two front desks had a fever during the day and could not work now. ”

When he returned to 2401, a smile finally appeared on the eldest brother's cloudy face: "It is said that there is no place to find when you step on the iron shoes, and it takes no effort to get it." I just inadvertently asked, but it solved a big problem in your mind. ”

Cao Yu'an made a deferential look: "What do you say? Got a major discovery? ”

The eldest brother smiled slightly: "Just now I saw that the girl at the front desk who received us was a little unclear, so I asked her if she was at work all day today." As a result, she told me that the two front desks of the original day shift had a fever today, so she was asked to take the shift. Did you find this a bit of a coincidence? Lulu was separated from you by checking in at the front desk, and then she contracted the virus, but you didn't. Just now, when we were taking blood, several people said that they were in line with chest tightness and shortness of breath, and then they had a fever. In addition, the previous two front desks were infected with the virus, and my judgment is that just this afternoon, when everyone gathered in the front desk area to line up for check-in, the Japanese took the opportunity to release the virus. ”

Cao Yu'an nodded: "The timing and location are all right, I'll go and see how the two front desks are doing now." ”

I said at the right time: "Then I'll go to Uncle Shen and ask him to test these blood samples." ”

After I handed the blood sample to Uncle Shen, I told him what we had just speculated. Uncle Shen listened to me silently, and said with some excitement: "Yes, your judgment confirms my previous speculation. What I can't tell is whether the virus is contact or respiratory, and how long it can survive outside the human body. You and your friend should each take a tube of blood for me, after all, you are your contact, and I want to see if your antibodies are working. ”

I looked at him with some horror: "Do you still think that the possibility of human-to-human transmission cannot be ruled out?" ”

Uncle Shen carefully observed the changes in the petri dish and replied to me: "I can't rule it out, because you can't be sure if there is a possibility that the incubation period is relatively long." Another hypothesis is that you all inhaled a slightly cool virus, but the body's own immune cells overcame it, so that there were no symptoms. ”

I walked out of the room and took a tube of blood on Christina's arm and gave it to Uncle Shen. I sat down on the couch tiredly, looking at the glittering night scene, and my whole body fell into a state of uneasiness.

After a while, Cao Yu'an and his eldest brother returned to the room. The faces of the two people were not good-looking, and Cao Yu'an said calmly: "The virus is more powerful than we imagined, I went to see the two front desks, and I already had shortness of breath and irregular heartbeat." I'm afraid that if I don't get timely treatment, I won't even be able to save my life. Others don't develop as fast, but it's certain that they will eventually get to this point. ”

Before Cao Yu'an's words fell, Uncle Shen, who had been doing experiments seriously, rushed out when he heard the words: "Where is the patient, I'll take a look." The eldest brother wanted to stop him, but he retorted: "The life of the front desk is not inferior to that of the residents, they have the fastest onset and the most serious symptoms, if they can be cured, what are other people's illnesses afraid of." As he spoke, he handed me two sets of goggles and gloves over and over again: "Take them all to the front desk to take a closer look, will there be any clues left." ”

I felt a pang in my heart, just now we were all in a hurry to investigate the case, but we forgot to protect the crime scene, and I don't know if there is any evidence left at this time. Christina and I did a carpet search at the front desk in full dance costumes, and sure enough, we found some fine white powder on the cover of the register. Flipping through the register, there was powder flying too.

I held my breath and put the register in a sealed bag, and with a soft-bristled brush, swept the rest of the powder into the sealed bag. I warned the lobby manager in a stern voice: "Immediately empty and isolate the front desk area, and cover it all if there are boards or the like, so that not even a trace of dust can leak out." I've figured out how the Japanese spread the virus now, and getting this powder on it is enough to kill people. ”

When the lobby manager heard this, his face immediately changed: "Okay, okay, I'll do it." I saw that he didn't dare to come out with his mouth and nose covered, so I comforted: "It is estimated that it is not transmitted through the respiratory tract, it may be transmitted by contact." You tell everyone to wear masks and gloves before they go to work, and it's fine. Seeing that he seemed to be in a hurry to leave, I asked, "One more thing, do you remember that there were suspicious people in the lobby with gloves?" ”

The lobby manager smiled very reluctantly: "Everyone doesn't wear gloves on such a cold day, but if it's summer, it's conspicuous." But there was something strange about me when you asked, everyone was wearing fur coats, and a few people in black suits had just arrived. They pushed and shoved all the way to cut in line, and they also argued with the front desk. If I hadn't been receiving the counsellor of the British Embassy, I'd have to deal with it. Isn't that why I got my life back? ”

I nodded, and answered his question very seriously: "I'm afraid that's right." ”

This time I discovered the virus powder cultivated by the Japanese, and I knew that with the existence of these, the success rate of Uncle Shen's development of antivenom was greatly increased. When he comes back from seeing the symptoms at the two front desks, we can move on to the final stage of conquering the virus.

Christina had been silent for a while, but at this point she suddenly said: "Now that the chain of evidence is complete, the only thing that worries me is where those Japanese have gone?" Do they have any other powder in their hands? If we search the hotel from room to room, will it alert them and cause unexpected events? ”

I shook my head: "When I went to draw blood just now, everyone was very cooperative, even those who refused were not abnormal. Later, you can go from room to room under the pretext of drawing blood, and you will always find them. But before that, you'll have to ask the lobby manager to immediately close the life-saving passages on each floor. If it is said to prevent the spread of the virus, it should not be suspicious. ”