Which infectious agent causes diseases that are the most difficult to cure?

bacteria
virus
fungus
prion
All known prion diseases affect the struc­ture of the brain or other neural tissue and all are cur­rent­ly un­treat­able and uni­ver­sal­ly fatal. This includes bovine spongi­form en­cephalopa­thy (BSE, also known as "mad cow dis­ease") in cattle and Creutzfeldt–­Jakob disease (CJD) in humans.

Answers distribution

bacteria
virus
fungus
prion
answers
flagFrance
4%
20%
4%
71%
45
flagRepublic of Ireland
5%
17%
6%
68%
73
flagItaly
3%
25%
3%
67%
28
flagGermany
4%
21%
6%
66%
187
flagPoland
7%
23%
5%
63%
16852
flagCanada
6%
28%
2%
62%
90
flagAustralia
17%
13%
3%
62%
29
flagPakistan
4%
26%
8%
61%
49
flagIndia
3%
27%
6%
60%
351
flagMalaysia
0%
30%
8%
60%
23
flagUnknown
9%
27%
5%
58%
77
flagLithuania
3%
27%
3%
58%
29
flagNorway
11%
22%
8%
57%
35
flagUkraine
0%
31%
10%
57%
19
flagSpain
10%
20%
15%
55%
20
flagthe United States
5%
33%
6%
53%
873
flagthe United Kingdom
5%
33%
6%
53%
482
flagthe Philippines
10%
33%
4%
50%
74
flagthe Netherlands
7%
33%
7%
50%
56
flagIndonesia
5%
42%
5%
47%
19

Gender

men63%
women64%
bacteria
5%
7%
virus
23%
22%
fungus
7%
5%
prion
64%
64%

Language versions

question
answers
results
flag
Which infectious agent causes diseases that are the most difficult to cure?
1970
54%

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