1) The 2009 swine flu pandemic may turn out to be the weakest in history.
2) The principle in toxicity is Dosis sola facit venenum - only the dose makes the poison. Thus, that which has no effect at one level (say, vitamin A) may be medicinal at a higher level and a deadly poison at a higher level still. Some chemicals which we normally regard as poisonous, such as arsenic, are actually therapeutic at low levels, while others that we generally regard as therapeutic, such as the heart medicine digitalis, are in fact deadly if consumed at the levels at which they normally exist in nature.
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