A hundred years ago, pollen allergies were rare. But today 10 to 20 percent of the inhabitants of Western countries are affected by it. How did that happen? And is there anything that can be done about it?
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When the first trees release their pollen, the misery already starts for many people. It is estimated that 10 to 20 percent of the population in Western countries suffers from a pollen allergy. It is a …
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