Compléter Black Death in EuropeVersion en ligne Black Death: causes and consequences. Spread around Europe. par Alfonso Poza 1 fleas breathing neck week days disease expectancy survived bubonic spread The variant derives its name from the buboes that appeared on a victim's , armpits or groin . Although some the manifestation of these lesions usually signaled the victim had a life expectancy of up to a . Infected that attached themselves to rats and then to humans this bubonic type of the plague . A second attacked the respiratory system and was spread the exhaled air of a victim . Life was measured in one or two . Finally , the septicemic version of the attacked the blood system .