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Eggs of some intestinal parasites survive acetolysis and can therefore be found in pollen slides. Especially pollen samples from medieval cesspits can yield large amounts of eggs of whipworm (Trichuris) and mawworm (Ascaris). Eggs of mawworm (also named giant roundworm) have never been assigned a type number in the large range of types published by Van Geel and co-authors, in contrast to those of...
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