Assertion: smallpox's virus | /r/CapableOf | thrive at temperature
Facets:
value: below 37ºc
type: OTHER
Source sentences:
text: In the case of rubella, the work was done partly by developing a strain of the virus that thrived at temperatures only below 37ºC (98.6ºF), making the human body an inhospitable place for it to be.