Assertion: pathogen's virulence | /r/HasProperty | noted in the tai forest ebolavirus
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text: The Zaire and Sudan strains are especially known for their virulence with up to a 90% fatality rateFootnote 19, with reduced virulence noted in the Tai Forest ebolavirus and the more recently discovered Bundibugyo strain, which caused a single outbreak in UgandaFootnote 6Footnote 7.