Within the medical profession , some have raised concerns about the unknown effects of the additives in the vaccines , in particular a substance called squalene .
在医学界，有些人已经对疫苗中的添加物，尤其是一种名为角鲨烯的物质的不明影响表示了担忧。
Almost every sample contained large proportions of squalene and cholesterol , the researchers reported in environmental science & technology , suggesting that human skin flakes make up much of the dust that settles on indoor surfaces .
That might be because cooking and other activities also release cholesterol into the environment . It could also be because ozone in the buildings is sucking up squalene .
