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
79%
7%
5%
4%
124
flagRepublic of Ireland
75%
3%
12%
8%
56
flagthe Philippines
73%
13%
6%
6%
15
flagthe United States
71%
12%
7%
6%
404
flagFinland
70%
10%
10%
10%
10
flagItaly
68%
4%
9%
18%
22
flagthe Netherlands
64%
16%
6%
12%
31
flagCanada
63%
11%
13%
9%
44
flagUkraine
62%
25%
0%
12%
16
flagNorway
58%
11%
11%
17%
17
flagthe United Kingdom
56%
16%
13%
11%
229
flagPoland
52%
14%
19%
13%
9383
flagFrance
52%
10%
15%
15%
19
flagGermany
50%
15%
16%
17%
112
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?
804
69%

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Illustration: Andres Rueda
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