Therefore, a level 2 orange alert means that a suspected case of infection has appeared.

Afterwards, F001 was pushed into a completely sealed, movable, transparent cabin, and then, under the care of two fully armed doctors, was transported from the emergency room to the testing center in the isolation treatment area.

When Li Lechen's mother saw her son being wheeled out in this state, her legs immediately went weak, and she stammered as she grabbed the doctor: "My son, he... what happened to him?"

"Suspected SW18 virus infection."

The doctor didn't hide anything. If you're diagnosed with SW18 virus infection, you basically have to be prepared for the worst; if not, then everyone's happy.

"Impossible! It's impossible for him to be infected with the SW18 virus!" Li Lechen's mother exclaimed. "We were tested this afternoon!"

The doctor ignored Li Lechen's mother and took F001 directly to the testing center.

Fortunately, we now have the technology to diagnose whether someone is infected with the SW18 virus by testing the concentration of the virus in their breath. Otherwise, anyone suspected of being infected would be quarantined, making it impossible to live a normal life.

Of course, Li Lechen's mother and Zhou Mi, who had been in contact with Li Lechen in the afternoon and evening, were asked to undergo testing.

Li Lechen's mother underwent testing for the second time in a short period, which surprised even the doctor who performed the test. However, given the level two orange alert, the procedure still required further investigation to rule out infection.

Li Lechen's mother was tested and ruled out for infection.

Zhou Mi was tested and ruled out for infection.

"My son couldn't possibly have been infected with the SW18 virus!" Li Lechen's mother affirmed once again!

However, the test results for F001 are slow to come out. Because F001 is currently in a coma, it is impossible for it to exhale a large amount of gas in a short period of time, failing to reach the minimum concentration detection standard, and the resulting negative result is likely a false negative.