Definitely not. Genya remains outside the ranks of Hashira throughout the manga. This is because of a combination of factors such as his skills, experiences, and the overall direction of the story.
Well, the circumstances of Genya's death in the manga are quite complex. It involves a series of events and confrontations with powerful enemies. But I can't recall all the details at the moment.
In some areas, there have been stories of bats with rabies. A hiker once unknowingly entered a cave full of bats. One bat scratched him slightly. He didn't think much of it at first. However, weeks later, he started to have nightmares, fever, and became delirious. His condition deteriorated rapidly due to rabies, and it was a very scary situation for him and his family.
In these stories, the fact that rabies is so difficult to treat once the symptoms start is really scary. You see the person or animal suffering and there's very little that can be done. It's like a slow and inevitable death sentence. The victims become more and more ill, with symptoms like aggression, confusion, and paralysis, which is terrifying to witness.
There was a case in a small village. A dog that was normally friendly suddenly became aggressive and bit several people. It turned out to be rabid. One of the bitten villagers, an old woman, started to show symptoms not long after. She became extremely agitated and had difficulty swallowing. As the rabies progressed, her condition became more and more horrifying, and she finally succumbed to the disease.
There was no mention of poliovirus in the Mandarin recital because poliovirus was a disease that was no longer common in modern Chinese. Therefore, it would not be mentioned in the Mandarin recital. However, some of the texts might mention rabies, such as " The Oil Merchant Owns All the Courtesan Belle ".
The story might detail the girl's terrifying experience of getting infected with rabies and her unlikely survival against all odds. It's shocking because rabies is usually fatal.