I read it quite thoroughly, spicerack. In particular, the sentence about "Infectious diseases continue to exert a heavy health toll. Preventing pandemics and reducing antibiotic resistance are global priorities, and hygiene is a cornerstone of containing these threats." -- which is, perhaps, a little out of place in an encyclopedia, but more or less makes the point.
I was going to write a longer post, but didn't have the energy. In any case, history should teach us that diseases flourish when hygiene standards are poor or dismal, and it therefore seems odd to suggest that a drive towards greater cleanliness*, etc, should increase the risk of a pandemic spreading.
*Another point the link makes clear is that "clean and germ-free" is a little misleading anyway: "The idea that homes can be made “sterile” through excessive cleanliness is implausible...".