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
flagUkraine
0%
17%
6%
76%
47
flagRepublic of Ireland
6%
17%
5%
70%
117
flagSpain
6%
13%
10%
70%
30
flagGermany
4%
20%
5%
68%
245
flagAustria
9%
21%
0%
68%
32
flagPoland
6%
22%
5%
64%
23436
flagFrance
5%
24%
5%
64%
54
flagPakistan
3%
22%
8%
63%
79
flagCanada
6%
30%
2%
61%
96
flagItaly
4%
24%
9%
60%
41
flagLithuania
2%
25%
5%
60%
35
flagIndia
3%
29%
5%
59%
519
flagthe United Kingdom
5%
31%
5%
57%
619
flagthe Netherlands
5%
28%
7%
57%
71
flagAustralia
12%
25%
2%
56%
39
flagUnknown
6%
33%
7%
53%
698
flagSweden
3%
43%
0%
53%
32
flagthe United States
5%
33%
6%
52%
1018
flagNorway
11%
25%
11%
52%
44
flagthe Philippines
13%
29%
5%
50%
97

Gender

men59%
women63%
bacteria
5%
7%
virus
27%
22%
fungus
7%
5%
prion
59%
64%

Language versions

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answers
results
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Which infectious agent causes diseases that are the most difficult to cure?
2507
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