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Organizations that exist to promote the welfare of animals must dissociate themselves from the actions of those claiming to safeguard animal rights by using violence against people.
Last century there was a sharp difference of opinion between those, such as Koch and Pasteur, who proposed that disease could be caused by invisible microbes, and others who held that epidemics are the result of evil vapours (mal'aria). Arguments that AIDS does not have an infectious basis are as quaint as those of the miasmalists.
