Hwarang's results were effective, and thanks to his efforts, the people in the quarantine area were freed from the plague, and when Hwarang saw the smiles on their faces growing, he felt that his efforts had not been in vain.

Soon, the plague in Chang'an City was brought under control, and it can even be said that it has been completely resolved.

Li Jing'an finally breathed a sigh of relief, and when he was relieved, he fell ill when he returned to the mansion, Hua Lang asked Hua Wan'er to come to check the pulse, and Hua Wan'er said that it was due to fatigue.

During this period of time, Li Jingan did a lot of things, and he did not live up to the name of Chang'an Mansion, which made Hua Lang feel very relieved, because the people he helped did not disappoint him.

But at this time, a major event suddenly happened in Chang'an City, Lu Rui, the son of Lu Fukang in Chang'an City, died, and died of the plague.

This news surprised Hua Lang and the others, they hadn't died in the quarantine area for so long, how could that Lu Rui die?

Hua Lang felt that this matter was not simple, so after appeasing Li Jing'an, he immediately took someone to Lu Mansion.

Lu Mansion in Chang'an City can also be regarded as a wealthy family, the mansion is very large, when they go, the house is crying, the atmosphere is weird and terrible, after the next person led them to the mourning hall, Lu Fukang immediately greeted him, this Lu Fukang is about fifty years old, at this time the expression is sad, people can't bear to look directly, after he greeted out, with tears in the corners of his eyes, after seeing Hua Lang, he hurriedly said: "Dude, this ...... How can I live, I, Lu Fukang, am such a son, and now ...... And now he is dead,......"

As he spoke, Lu Fukang choked up a little, and the following words couldn't go on, Hua Lang could understand his pain very well, so he had to comfort him, and then he proposed to check the body, although Lu Fukang didn't think there was anything abnormal about his son's death, but Hua Lang asked to see it, and he still led Hua Lang and the others to the mourning hall.

Lu Rui's mourning hall was very grandly arranged, after Hua Lang ordered someone to push the coffin, he carefully examined the corpse, at this time the corpse did have traces left by the plague, but after Hua Lang researched the vaccine, he had already let many people be vaccinated, why did this Lu Rui still have this situation, is it because of a problem with his own vaccine?

There is also a reason why Hua Lang thinks so, because of the problem of technique, his vaccines are not very pure, and they may immediately contain a small amount of antigens, and if these antigens encounter a suitable carrier, it is extremely possible for them to suddenly erupt.

It's just that many people have used Hualang's vaccine, and they have no problems, why does this Lu Rui have problems?

When Hua Lang insisted on Lu Rui's corpse, he suddenly discovered a situation, that is, the traces left by the plague on Lu Rui's body seemed to have been for a while, that is, he had had the plague before.

But how is this possible? The people who got the plague in Chang'an City were all quarantined at that time, and there was no Lu Rui among them?

Thinking of this, Hua Lang couldn't help but glance at Lu Fukang, and at this glance, he finally understood what was going on, Lu Fukang's eyes flickered a little, it was obvious that he had concealed the fact that his son had the plague.

After getting up slowly, Hua Lang frowned slightly and said coldly, "Should Boss Lu say something?" ”

Lu Fukang was slightly startled, and hurriedly asked, "Say ...... What to say? ”

The corners of Hua Lang's mouth twitched slightly, and he said, "At that time, the government asked to inform all people infected with the plague to be quarantined, why didn't you hand over your son to us for quarantine?" ”

"This ...... This ......" Lu Fukang looked at this and this for several times, but in the end he couldn't say anything, and at this time, a woman suddenly cried and rushed in, after she rushed in, she first lay on Lu Rui's corpse and cried, and then there was a heart-rending cry, until she cried like this, then she looked at Hua Lang with a sad face and said: "It's me, it's me who didn't let the master hand over our son, he has been pampered since he was a child, and he is definitely not used to being isolated, I can't watch my son suffer." But ......" At this, the woman's tone changed suddenly, and there was seven points of regret in it.

It's just that the latter words didn't come out, because she didn't have to say it anymore.

And at this time, Hua Lang had the opportunity to take a closer look at this woman, this woman should be in her forties, and her figure is slightly plump, probably because of the good maintenance, there are not many wrinkles on her face, and there are still some charms.

From this woman's words just now, it can be heard that she is Lu Rui's mother, Lu Fukang's wife, that is, Mrs. Lu.

At this time, Lu Fukang and Mrs. Lu were both feeling guilty about their son's death, Hua Lang frowned slightly, and said, "It's been some time since the plague antidote was sent below, didn't you vaccinate Ling Lang?" ”

"This is naturally inoculated, but after vaccination, it is useless at all!"

Hua Lang frowned slightly, and said, "Everyone is useful, how can your son's be useless?" Speaking of which, Hua Lang came to the corpse again for a careful examination, on the arm of the deceased, Hua Lang did find traces of vaccination, but when Hua Lang looked carefully, he found that there was something wrong with that place, that is to say, the vaccine on Lu Rui's arm is probably not the vaccine taken by Hua Lang, if it is the vaccine taken by Hua Lang, the place will quickly scab over after vaccination, but there is no on Lu Rui's arm, in addition, the color is also a little wrong.

After seeing this, Hua Lang asked, "Who vaccinated Lu Rui?" ”

Lu Fukang didn't understand why Hua Lang asked this question, so he stepped forward again and again and said, "It's me!" ”

"Is it uniformly distributed by the government that vaccinated you?"

"yes!"

"You were vaccinated immediately after the government sent it?"

"This ......"

"Say, did you get vaccinated right away?"

"I didn't ...... No, in the beginning, we ...... We didn't believe in the vaccine sent by the imperial court, so we didn't get vaccinated, and then we saw that everyone else had been vaccinated and everything was fine, so we just got vaccinated, and they were all ...... It was we who hurt Rui'er, if it weren't for our indecision, he wouldn't have died, it was we who vaccinated them too late. ”

Hua Lang's eyes were like torches, and he felt that it was not that Lu Fukang vaccinated Lu Rui late, but that someone had dropped the vaccine.

"After the imperial court gave you the vaccine, where did you put the vaccine?"

"Because this thing is so precious, I put it in the ...... It was placed in the secret room of the storeroom, which only I had a key to open...... I hurt Rui'er! Saying that, Lu Fukang blamed himself again.