Brain biopsy, as the name suggests, performs pathological examination of the brain lesion biopsy - so they collected part of the brain that was confirmed to be infected in the previous imaging examination, and continued to confirm the condition in such a simple, crude, reliable and direct way. However, the current examination results once again unexpectedly - there was no sign of inflammation in the infected brain tissue, and the Staphylococci infection that had been considered before was also denied.

Nothing was attacking his brain, but something was attacking his brain.

Qianyu and the doctor were both in extreme confusion, but Gregory suddenly remembered something. "I remember, did they find a piece of broken bread on the open balcony of the patient's ABC family?"

"Yes, a piece of rye bread in shape was left, and it was found on the balcony outside the flower room. The ergot bacteria-related test was negative." Qian Yu immediately replied - in the past time, he had recorded all the medical records and could already do it.

(Author: The examination of ergot bacteria is caused by spastic ergot poisoning, which can cause symptoms such as nerve disorders and blindness.)

"Have you brought the bags of bread back?" Gregory asked again. "If you check for the moldy part, you will definitely not be able to find Ergot. You can only find the whole bag of bread."

"I didn't bring it back." Qian Yu continued to shake his head.

"Give me the blood test order," Gregory thought for a moment, and suddenly stood up. "Forget it, I'll go there, and then... prepare a set of chemical protection suits for me and this little guy."

"Why do you want the kids to go with you?" the doctor was surprised. "Can't I do it? And there are other young doctors who are well-trained, physically meeting all your needs."

"But they are too big," Gregory shook his head. "Such a lively little kid is just right, and I can use it easily."

...

One hour later.

"This bag... wants me to drag it?" Qian Yu walked out of the car and looked at the empty bag in his hand, and was a little stunned.

"Of course you don't need to drag it," Gregory walked in front and glanced at him. "Training will destroy what is inside. I need you to carry it--not touch the ground."

"So how much do we have to put on?" Qian Yu felt that he was in a bad mood and asked helplessly. "I won't be one of them, right?"

"It's very likely."

After such a communication, the two of them walked in through the main entrance wearing full-body chemical protective suits and finally arrived at the house where the patient ABC was: they had the keys, so it was very convenient to enter.

The whole house is a typical place where a family of three can live comfortably - after entering the living room from the entrance, the dining room, master bedroom, guest bedroom and living room toilet are arranged on three sides of the living room, and the living room itself also has an enclosed balcony.

"We do it in order," said Gregory, and walked into the toilet with Qianyu. "When you see something that may be mixed with impurities, remind me - let's forget about common brands of things that can only be entered but not out, for example..." As he said this, he pointed to the direction of the sink. "Check whether there is mold behind the sink, and then take away the cups, towels and hair dryers on it. After confirming that it is hand sanitizer, it is not necessary to check the ingredients of that thing very well."

"Does the towel need to be checked?" Qian Yu asked as he checked whether there was mold behind the sink - but there was no one.

"Have you been fed the dog in your brain?" Gregory just pulled up the back cover of the toilet and glanced, saying. "If there was really something, we should have detected it on some of their faces."

After such a test, the two came to the restaurant - the priority of the master bedroom and the guest bedroom is relatively low, because if there are pathogenic factors in these two places, there is no reason why the family of three is infected at the same time. It should be that the parents are infected more significantly faster or the children are infected more significantly faster.

But when it comes to the issue of infection progress... Why is D, who does not live here, significantly faster? Is it because his body is more vulnerable to the disease for some reason, or is this disease simply transmitted to the three ABC people? But if that is the case, why did it only transmit to the three of them, but not to others? None of the relatives D was with him day and night, why did something happen to these patients who had been here for a few days?

After such inference, it is more reasonable that the former is left - for some reasons, the development of specific unknown diseases in D is faster.

"Okay, here is the restaurant-" Gregory said as he looked towards the refrigerator. "You can find out if there is any rye bread you mentioned before, and then go to the kitchen to check it out."

"Roger," Qianyu nodded, and then began to look around 360° while walking towards the restaurant - the auxiliary unit was enough to provide enough dynamic vision in this case to complete the monitoring of the surroundings. "Ah... Found."

As he said this, Qianyu walked through the dining room, climbed up the cabinet from a bench in the kitchen, and picked up four bags of black bread from it. "Three and a half bags, about 43 pieces,"

"Please check whether shelf life and moldiness are not there." Gregory transferred a few leftovers from the refrigerator and entered several test tubes in his hand.

"There is a pack of half left about one and a half months ago, and the other three packs are half a month ago." Qian Yu said this, searching for bread piece by piece. "Half-pack of bread is normal, no abnormality."

"Okay, then rule it out-" Gregory suddenly reacted when he said this. "Wait, do you mean that the remaining half bag was from a month and a half ago, and the other three bags were from a half month ago?"

"Yes..." Qianyu nodded. "If it was the same frequency, it means that they had probably eaten about 36 slices of bread in the past month? The speed of eating is a bit slow. If it were me, it might be better to choose to buy a pack for more than ten days than to buy so many at a time."

"Or it may not be for them to eat..." Gregory suddenly showed a subtle expression. "Come with me - let's go to the flower room to have a look."

The location of the flower room is hanging alone outside other rooms - you need to come from the master bedroom to the balcony outside before you can come from the flower room from outside. And on the balcony, Gregori's steps stopped.

"Oh..." Gregory looked at the gray spots on the ground, and a clear look appeared on his face.

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Chapter completed!