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
flagSingapore
0%
26%
0%
73%
19
flagRepublic of Ireland
5%
17%
6%
68%
73
flagFrance
2%
22%
5%
68%
35
flagGermany
3%
22%
5%
67%
176
flagItaly
3%
25%
3%
66%
27
flagCanada
6%
26%
2%
64%
87
flagPoland
7%
23%
5%
63%
16152
flagAustralia
17%
13%
3%
62%
29
flagIndia
3%
27%
6%
61%
340
flagMalaysia
0%
28%
9%
61%
21
flagUU
5%
32%
2%
60%
40
flagPakistan
4%
28%
8%
58%
46
flagNorway
11%
22%
8%
57%
35
flagLithuania
3%
28%
3%
57%
28
flagSpain
10%
20%
15%
55%
20
flagthe United Kingdom
4%
33%
6%
54%
458
flagthe United States
5%
33%
6%
53%
860
flagthe Philippines
9%
34%
4%
50%
73
flagthe Netherlands
7%
32%
7%
50%
55
flagSweden
5%
47%
0%
47%
19

Gender

men64%
women64%
bacteria
5%
7%
virus
23%
22%
fungus
6%
5%
prion
64%
64%

Language versions

question
answers
results
flag
Which infectious agent causes diseases that are the most difficult to cure?
1913
54%

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