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
flagIndia
76%
7%
8%
5%
162
flagUkraine
75%
17%
0%
6%
29
flagCzech Republic
70%
15%
10%
5%
20
flagthe United States
69%
12%
8%
8%
492
flagRepublic of Ireland
69%
5%
16%
9%
75
flagthe Philippines
64%
17%
14%
3%
28
flagSwitzerland
64%
7%
14%
14%
14
flagthe Netherlands
63%
17%
3%
15%
57
flagCanada
62%
11%
12%
11%
54
flagItaly
62%
10%
13%
13%
29
flagthe United Kingdom
61%
14%
11%
12%
368
flagAustralia
60%
21%
13%
4%
23
flagGermany
58%
12%
13%
15%
173
flagNorway
57%
10%
15%
15%
19
flagPoland
53%
14%
18%
12%
14409
flagFrance
50%
13%
13%
19%
36
flagSweden
46%
11%
30%
7%
26
flagUnknown
40%
16%
26%
17%
570
flagSpain
33%
27%
22%
16%
18
flagLithuania
18%
18%
43%
18%
16

Gender

men47%
women49%
smallpox
47%
49%
leprosy
16%
14%
cholera
21%
21%
typhus
14%
13%

Language versions

question
answers
results
flag
Which infectious human disease has been eradicated?
1050
67%

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Illustration: Andres Rueda
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