10

In the anime and manga of Highschool of the Dead, the world is going through a pandemic of a lethal disease which kills a person, makes them rise from the dead, and seek to eat their own kind - infecting the persons the devour with the disease.
In the first episode,

When Hisashi is bitten by one of 'them', he has a wound for a long time. It takes more than 2 hours for him to finally die.

During the first 9 minutes of episode 3 or 4, there are annotations on the bottom of the screen stating the time of the events that occurred. When we see the scene with Takashi, Hisashi and Rei are running through the school trying to make it through to the roof - you can easily see

the wound on Hisashi's arm - which is a bite mark that made him infected, and death inescapable. He coughs and splutters blood, and it takes him from around 1:00 PM to 3:05PM to die.

However, later in the series, you can see that those bitten can also become 'them' instantaneously. For instance,

in episode 6 or 7, we see a swarm of 'them' trying to attack the police at the first bridge. A live woman is amongst the crowd pleading to be saved and protected, with her daughter 'alive' in her arms. But the daughter rises as one of 'them' and bites her Mother. For a brief second, you see the Mother in shock - and then only seconds later she turns into one of 'them'.

Is there any real way to tell how long it takes for a live person to turn into 'them'?

  • 2
    If anything, it's probably the severity of the bite. Otherwise, it's whatever the producers chose to make the show flow better. – Mysticial Jan 19 '13 at 6:07
  • I was thinking that. That 'anime magic' I suppose :P. Hisashi's bite was small, if I remember. Whereas perhaps the other victims had large bites, which sped up the process. Hm... – Grace Jan 19 '13 at 6:18
  • Could it some pathogen whose initial quantity is proportional to the severity of the bite? This pathogen would eventually cause 'death' and then reanimation. – Chetter Hummin Jan 19 '13 at 15:51
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It's most reasonable to suspect the severity of the bite.

When Hisashi was attacked, he had a layer of clothing protecting him. So it's safe to say that the bite didn't get very deep penetration. Hence why he was able to last the entire episode (several hours)?

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Oh the other hand, Tejima-sensei from earlier in the first episode took a large bite directly on his naked arm. He was zombified almost instantly (under 1 minute).

enter image description here

  • 4
    I hope these images aren't too graphic. I can pull them if need be. – Mysticial Jan 19 '13 at 6:34
9

Like any other disease, the length of the incubation period is dependent on several facts:

  • The localization. A bite in the neck may kill you faster than a bite in your foot.
  • The severity. As @Mysticial pointed out, Hisashi was protected by clothes, while Tejima was bitten directly.
  • The time the zombie is infected. If the zombie is only infected 2 seconds, there might be less viruses transferred with one bite, than by a zombie who is infected since several days.
  • The immune system. Like with any other disease, an ill person will pass the incubation period faster. If you're absolute healthy, you may have more time.

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