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The text states that smallpox is the only human disease eradicated, has no cure, and its vaccine is the first and most successful.

Evidence confirms that smallpox is one of two diseases eradicated by human efforts, alongside rinderpest, which refutes the claim that it is the only human disease eradicated. Smallpox has no cure, but there are treatments available, particularly vaccinations that can prevent the disease. Historically, the smallpox vaccine was the first successful vaccine, established by Edward Jenner, and smallpox eradication is a significant achievement due to its global health impact. Regarding the opinion that the smallpox vaccine was the most successful, while it was instrumental in eradicating the disease, the term 'most successful' is subjective and cannot be objectively verified.

April 06, 2026 Language: en 4 claims analyzed

Individual Claims

34
Mostly False Health
Smallpox is the only human disease that has been successfully eradicated.
Full Fact rated this claim as false, stating that rinderpest is another disease that has been eradicated. Web evidence supports this by mentioning smallpox’s eradication but does not claim it is unique.
Fact Check Score 47
Fact Check Weight 40
Web Consensus Score 20
Web Consensus Weight 30
Source Quality Score 15
Source Quality Weight 15
Llm Reasoning Score 10
Llm Reasoning Weight 15
Weighted Total 34
Evidence Summary 1 fact-check match (Full Fact: False), 2 web sources
68
Mostly True Health
Smallpox has no cure.
Web evidence consistently indicates there is no known cure for smallpox, although antiviral treatments can help if administered early. Vaccination can prevent the disease.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 80
Web Consensus Weight 50
Source Quality Score 70
Source Quality Weight 25
Llm Reasoning Score 60
Llm Reasoning Weight 25
Weighted Total 68
Evidence Summary 3 web sources confirm no cure, but treatments exist.
78
Mostly True Health
The vaccine against smallpox was the first vaccine.
Web sources corroborate that the smallpox vaccine, developed by Edward Jenner, was indeed the first vaccine, establishing it as a significant historical milestone.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 85
Web Consensus Weight 50
Source Quality Score 80
Source Quality Weight 25
Llm Reasoning Score 85
Llm Reasoning Weight 25
Weighted Total 78
Evidence Summary 3 web sources establish the historical fact of the vaccine.
22
Mostly False Health
The smallpox vaccine was the most successful vaccine.
This is an opinion as 'most successful' is subjective without a clear metric for comparison. While the smallpox vaccine was crucial in eradicating smallpox, a factual assessment of success requires objective criteria.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score None
Web Consensus Weight 50
Source Quality Score None
Source Quality Weight 25
Llm Reasoning Score 50
Llm Reasoning Weight 25
Weighted Total 22
Evidence Summary Opinion statement; subjective success cannot be measured objectively.

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