Human interactions with microbes
In the Middle Ages , Giovanni Boccaccio's "The Decameron" and Geoffrey Chaucer's "The Canterbury Tales": addressed people's fear of deadly contagion and the moral decline that could result . 
<triplet> Giovanni Boccaccio <subj> The Decameron <obj> notable work <triplet> The Decameron <subj> Giovanni Boccaccio <obj> author <triplet> Geoffrey Chaucer <subj> The Canterbury Tales <obj> notable work <triplet> The Canterbury Tales <subj> Geoffrey Chaucer <obj> author