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Library Journal
Reviewed on September 15, 2012 | Health & Medicine
The prevalence of allergies and autoimmune diseases has increased dramatically in the developed world over the past 150 years, and freelance science journalist Velasquez-Manoff finds that greater access to clean water, improved sanitation, vaccines, and antibiotics may be a factor. Before the Industrial Revolution, people were exposed to a wide variety of bacteria and parasites. Immune system cells were kept in balance by the useful bacteria, but when modern i...Log In or Sign Up to Read More