Which infectious human disease has been eradicated?

smallpox
leprosy
cholera
typhus
After vac­ci­na­tion cam­paigns through­out the 19th and 20th cen­turies, the WHO cer­ti­fied the erad­i­ca­tion of smallpox in 1979. The fact that humans are the only reser­voir for smallpox in­fec­tion, and that carriers did not exist, played a sig­nif­i­cant role in the erad­i­ca­tion of small­pox. So far, it is the only erad­i­cat­ed in­fec­tious human disease.

Answers distribution

smallpox
leprosy
cholera
typhus
answers
flagUkraine
77%
16%
0%
6%
31
flagIndia
74%
8%
8%
6%
175
flagCzech Republic
70%
15%
10%
5%
20
flagthe United States
69%
11%
8%
9%
509
flagSwitzerland
68%
4%
13%
13%
22
flagRepublic of Ireland
66%
9%
14%
9%
87
flagthe Philippines
65%
17%
13%
3%
29
flagthe Netherlands
63%
17%
3%
15%
58
flagCanada
62%
11%
12%
11%
54
flagthe United Kingdom
61%
14%
11%
12%
380
flagItaly
60%
13%
13%
13%
30
flagAustralia
60%
21%
13%
4%
23
flagGermany
57%
11%
13%
16%
185
flagNorway
55%
10%
20%
15%
20
flagPoland
54%
14%
18%
12%
15207
flagFrance
50%
13%
13%
19%
36
flagSweden
48%
12%
25%
9%
31
flagUnknown
40%
16%
25%
16%
597
flagSpain
33%
27%
22%
16%
18
flagLithuania
17%
17%
47%
17%
17

Gender

men47%
women50%
smallpox
47%
50%
leprosy
16%
15%
cholera
21%
21%
typhus
14%
13%

Language versions

question
answers
results
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Which infectious human disease has been eradicated?
1084
67%

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Illustration: Andres Rueda
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