 Mushroom poisoning is more common in Europe than in America . Up to the mid @-@ 20th century , the mortality rate was around 60 – 70 % , but this has been greatly reduced with advances in medical care . A review of death cap poisoning throughout Europe from 1971 to 1980 found the overall mortality rate to be 22 @.@ 4 % ( 51 @.@ 3 % in children under ten and 16 @.@ 5 % in those older than ten ) . This has fallen further in more recent surveys to around 10 – 15 % . 
