http://www.sciencemag.org/news/2020/02/sexual-misconduct-legal-battle-raises-questions-about-microbe-researcher-s-work

Researcher Jeff Leach has studied the microbiome of the Hadza people of Tanzania. 

A researcher famed for his work on the microbiomes of hunter-gatherers has been accused by several women of sexual assault, according to U.S. court documents. Jeff Leach, a resident of Terlingua, Texas, co-founded a major open-source, crowdfunded project on the microbiome and is the co-author of multiple papers on gut microbes, including one in Science. In the publicity resulting from the allegations, other questions have emerged about Leach’s academic qualifications and his behavior in the field.