Decades of active public health messaging about the dangers of pathogenic microbes has led to a Western society dominated by an antibiotic worldview; however recent scientific and social interest in the microbiome suggests an emerging counter-current of more probiotic sentiments. Such stirrings are supported by cultural curiosity around the ‘hygiene hypothesis’, or the idea it is possible to be ‘too clean’ and a certain amount of microbial exposure is essential for health. These trends resonate with the ways in which scientists too have adopted a more ‘ecological’ perspective on the microbiome. Advances in sequencing technologies and decreasing costs have allowed researchers to more rapidly explore the abundance and diversity of microbial l...