הצטרף ב:מאי 23, 2021 פעילות אחרונה: מאי 17, 2022 iNaturalist

Research scientist at NIH in Bethesda. Most highly cited scientist in the world regarding the pathogen Mycobacterium tuberculosis. Avid birder and naturalist with a particular interest in sphagnum bogs from which the pathogenic mycobacteria that cause tuberculosis and leprosy likely emerged. Amateur botanist with a particular interest in orchids.

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