Gu Ji's pupils shrank slightly.

Cough and erythema on the skin are mostly caused by viral infections or allergies, such as eczema, measles, hemorrhagic fever, cowpox, etc.

One, two, four......

On the bare skin of his arms and calves alone, he found at least four pimple-like red spots, including the plaques on the calves that were the size of a child's palm!

The presence of large areas of erythema on the extremities and the appearance of acute signs indicate that the incubation period of the virus has passed and the onset of the virus has begun.

He is now unsure of the specific type of virus that will break out on the cruise ship.

However, judging from the year-on-year difficulty of the "three days" limited time limit promulgated by the mission, the incubation period of the virus must be very short and highly contagious.

"Suck ~ Well, the pasta in this cafeteria tastes really good......"

"Crying Noka (where are you going)?"

"Sneeze ......"

……

Around the table next to the man in the brown hat, there are Europeans and Americans munching on pasta, people from Dongying getting up to get food and passing past him, and others sneezing and spraying droplets into the air.

Gu Ji's eyes changed, and he immediately threw away the pizza in his hand and put the mask back on.

The brown-haired man drank the beer in his hand, got up, and staggered about to leave, but ran into a Middle Eastern man wearing a turban.

"Hey! Look at the dots, drunkard! ”

The Middle East pushed him away with a look of displeasure, and immediately dusted off his clothes with his hands, as if in disgust.

A cleaner quickly pushed the kitchen waste truck to the side, picked up the beer bottle that the man in the brown hat had drunk, and threw it into the garbage bin, and the residual liquid of the bottle burst on the ground and the leg of the table next to it.

"I kind of left beforehand."

Gu Ji quickly took out his mobile phone, took pictures of the faces of these close contacts, put aside the words, and got up to leave, leaving Ito Mizakura who had not yet reacted.

All the way through the crowd, he watched the hand of the man in the brown hat, touched the corner of the table, the handrail of the door, and then came to the door of the sightseeing elevator, and squeezed in with several passers-by.

Click, Gu Ji pressed the shutter of his mobile phone several times, and took pictures of all the people in the elevator, and did not choose to go up with him.

Although it is easiest to determine the location and information of the brown hat man by following closely, the elevator is an ultra-narrow enclosed space after all, and the air is not easy to circulate, even if he is wearing an N95 mask, he does not dare to take risks.

In case of infection with the virus and the mission fails, the system will drop random penalties, which will affect his follow-up intelligence collection, and the gains outweigh the losses.

Moreover, even if you don't enter the elevator, Gu Ji has a way to estimate the location.

He came to the elevator door and forced his gaze at the number of floors jumping on the display, the entire cruise ship has a total of 18 decks, he only needs to note down which floors the elevator stops on, and then go to these floors to look for them one by one.

“9、12、15……”

There are three floors in total.

Gu Ji changed an elevator and started looking for it from the ninth floor, but fortunately, the target was wearing a hat and a floral shirt, which was easier to distinguish, and when he came to the 12th floor, he finally met the target in a casino.

What I didn't expect was that the man in the brown hat had an extra female companion by his side, very young and in good shape, wearing a pink hip skirt, perm blonde hair with big waves, and bronzed skin, which belonged to a typical Shibuya hot girl.

He silently followed the two of them to many places, recording each close contact and the location where they stayed one by one.

There are three elements of infectious diseases: the source of infection, the route of transmission and the susceptible population.

What Gu Ji is doing now is to lock down the source of infection and record contacts, once these people have the same symptoms as the brown hat man, it can basically be determined that it is an infectious disease incident.

He can then infer the route of transmission based on these infected people and contact locations, and test the type of virus, so as to carry out effective prevention and control and prevent further outbreaks of the virus in the cruise ship.

The brown-hatted man and his female companion played for less than forty minutes before turning around and returning to the room on the same floor.

Gu Ji followed all the way, walking and walking, and inexplicably found that his feet were a little sluggish, and his head was dizzy, and at this moment, a figure suddenly rushed in front of him and grabbed him.

He subconsciously slid to dodge, but because of dizziness, his movements slowed down, and he was still grabbed by the collar.

"Hey! Feed! Anatawa is enough to get Suga (who the are you)? ”

The figure grunted, reaching out to pull off his mask.

Gu Ji looked at it, and it turned out to be the man in the brown hat, who hurriedly raised his knees and slammed them against the man's pants, and his left hand was decisively inserted into his throat with a strong wind.

Bang! Burst!

"Ahh

The brown-hatted man shrunk his buttocks back, screaming and coughing while clutching his throat, and his female companion hurriedly stepped forward to help.

Although Gu Ji's physical fitness has been weakened, his reflexes and fighting experience are still there, and it is easy to deal with an ordinary person.

"Hey!"

A sturdy security officer in a black uniform in the hallway noticed the argument and hurriedly ran over to ask.

Gu Ji immediately took a step back and stayed away from the brown-hatted man, indicating that he was not good at Japanese.

"What happened? Why do you want to do it? ”

The security officer asked again in English.

Gu Ji pretended to be a weak girl and shook her head desperately: "I don't know, it was the other party who did it first!" ”

When the brown-haired man heard this, he immediately became anxious, and scolded on the spot, "Obviously, you followed me first!" The cafeteria, the casino, and now my room, what do you want? Didn't you hire you from the dead bastard! ”

Even if Gu Ji was very careful, the white mask and white coat were still too conspicuous.

He rolled his eyes and simply pointed to the red spots on the man's arm, "I just saw the red spots on his body and was a little scared, and I wanted to confirm whether he was deliberately spreading infectious diseases." ”

The security personnel were also slightly stunned when they saw the red spot.

"Sir, it's ...... on your arm."

"I'm just eczema." The brown-haired man's voice was much quieter, as if he had a weak heart.

"Is there a proof?"

Gu Jiqiu asked.

"What proof? Who are you? Nosy here? ”

"Alright, you both give a step and stop here."

The security personnel mediated between them, and after the brown-hatted man left, he turned his head to look at Gu Ji and showed a confident smile: "Don't be afraid, ma'am, if he makes trouble for you again, you can come directly to me!" ”

"Thank you."

Gu Ji nodded, secretly wrote down the house number of the man in the brown hat, and just as he was about to leave, the feeling of dizziness became stronger and stronger, and there was a vibration in his wrist.

He raised his wrist and saw that a string of red text was displayed on the smart bracelet: blood sugar value 10.9!

"Blood sugar so high?"

No wonder the cardiovascular circulation and digestive system will be weakened so much, it turns out that "Jiang Na" has a problem with sugar regulation and metabolism.

Next time, pay more attention and can't eat so much pizza.

Gu Ji rested for a while, and after the blood sugar level monitored by the bracelet came down, he began to observe the close contacts he photographed, anyway, the "source" has been locked, and the data has been collected enough, and then it will be up to see if these people have symptoms.

"Ahem......"

Suddenly, he noticed that an old man coughed twice.

Gu Ji hurriedly flipped through his mobile phone and found a photo of the white-haired old man and the brown-haired man at the same gaming table, although there was no direct physical contact, but the distance was very close.

"Ahem...... Ahem......"

What he didn't expect was that just as he was about to get closer and observe closely, someone behind him coughed twice!!