: Why do prion diseases have 100% fatality rate ?

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I recently found out about the so-called prion diseases, which are incurable and fatal diseases that affect (a euphemism, the real word is destroy) the CNS and cause a rapid deterioration of mental and physical abilities.

There are many prion diseases, the two most famous are probably the mad cow disease (non-human mammals), and the Creutzfeldt–Jakob disease (CJD) (for human mammals). Both are 100% fatal, and *no one* is known to have survived longer than 2.5 years after a CJD diagnosis. That’s the kind of stuff you wouldn’t wish on your worst enemy.

Why are these diseases so deadly? I read that it has to do with abnormal proteins but that was way over my head.

EDIT : I have another question, can prion diseases be rightly called the most dangerous diseases known to man ?

Thanks;

In: Biology

18 Answers

Anonymous 0 Comments

Because the body possesses no defense mechanism against them, they simply don’t recognize the misfolded proteins as a threat.

The good news is that unless you are consuming brain matter or working on brain research (like that scientist who cut herself accidentally and yes, died from Prions) your chances of getting a prion are practically zero.

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