Topics

Microbiome
Lab contamination ruins many microbiome studies, researchers say
Lab contamination ruins many microbiome studies, researchers say

New DNA sequencing technologies have greatly expanded our knowledge of the human microbiome - the teeming world of microorganisms that inhabit our bodies - yet a team of researchers now argues that many studies may be flawed because of contamination. In a paper published Wednesday in the journal BMC Biology, researchers suggested that bacteria living on human skin, in the soil or in water have erroneously turned up in many microbiome studies, particularly those that seek to catalog sparse populations of microbes. The contamination, the authors wrote, can occur during sample collection, preparation or during DNA sequencing because of tainted testing kits and reagents. "This can...

Loading