egrigore:

One of the prominent things that we knew about Grisha from the very beginning of the series was his outstanding ability as a doctor and how he cured a plague.

But doesn’t this whole situation seem a little suspicious?

According to the internet, an “antibody” is a substance produced by the body in response to bacteria, viruses, and other foreign substances in the blood. This protein is created when the body recognizes the invader and has already developed an immune response towards it.

And while characters like Hannes and Shadis make note of explaining how lucky it is that Grisha was able to find a cure… it is important to make the connection that IF the cure was an antibody, then the only place that it could have come from was Grisha Jaeger.



Which would mean that Grisha Jaeger would have had to already have an immunity to the mysterious plague.

Okay, that’s really suspicious.

But with the reveal of Grisha’s backstory, this makes a lot of sense.

The people from inside the walls were separated from the main land population for over 100 years. And over that century, the main land population would experience constant epidemics in the form of diseases and viral infections. The population would gradually become immune to these strains of disease and they’d no longer be affected by them.

But imagine if an individual who was separated from the main land population ended up getting infected with one of these strains.

Thanks to antigenic drift, these individuals would not have the immunity available to combat these new strains of disease.

But someone from the main land population would have a natural immunity because of generations worth of genetics.

Unfortunately, someone with a natural immunity can still carry infectious diseases with them- unknowingly. And when this unknowing carrier is introduced into a population that has no natural immunity, then it can cause havoc.

We’ve seen it in history.

When the Europeans arrived in the New World, they bought Smallpox and Influenza with them. They infected the indigenous population causing many deaths. The most vulnerable groups were those with a relatively small population and few built-up immunities.

And 100 years is more than enough time for a distinct immunity gap to be formed. Compare with Smallpox and how it was eradicated back in the 1980s leading to a stop in immunizations against Smallpox. Its been 30 years since then and the world population no longer has any immunity towards Smallpox.

What we can gather from this is pretty interesting…

The population inside the walls was infected with a plague because they were exposed to a disease that they had no immunity against. Grisha had an “antibody” that he converted into a cure; meaning he already had an immunity towards this disease.

So this disease was probably something from the main land.

And it only occurred after Grisha was allowed inside the walls.

Grisha didn’t just cure the plague.

He brought it with him.