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
flagCzech Republic
83%
8%
0%
8%
12
flagBelgium
83%
0%
16%
0%
12
flagAustralia
80%
13%
6%
0%
15
flagIndia
78%
7%
6%
4%
128
flagRepublic of Ireland
74%
5%
12%
8%
58
flagthe United States
71%
12%
7%
7%
422
flagItaly
68%
4%
9%
18%
22
flagCanada
64%
10%
12%
10%
48
flagthe Philippines
64%
11%
17%
5%
17
flagUkraine
62%
25%
0%
12%
16
flagthe Netherlands
61%
19%
5%
13%
36
flagthe United Kingdom
58%
14%
13%
12%
250
flagNorway
55%
11%
16%
16%
18
flagPoland
53%
14%
18%
13%
9939
flagGermany
52%
14%
16%
16%
123
flagFrance
50%
13%
13%
18%
22
flagUU
48%
9%
25%
16%
31
flagSweden
38%
15%
23%
15%
13
flagSpain
30%
23%
23%
23%
13
flagLithuania
23%
23%
38%
15%
13

Gender

men51%
women50%
smallpox
51%
50%
leprosy
15%
15%
cholera
18%
20%
typhus
14%
13%

Language versions

question
answers
results
flag
Which infectious human disease has been eradicated?
842
69%

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Illustration: Andres Rueda
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