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Steven Kafka

ArcherDx has appointed Steven Kafka as executive chairman of its board of directors. Kafka will replace Kyle Lefkoff, founder and general partner of Boulder Ventures. Lefkoff will remain on the board of ArcherDx. Kafka currently serves as a partner at Third Rock Ventures. Prior to Third Rock Ventures, Kafka served as president and chief operating officer at Foundation Medicine. Prior to Foundation, Kafka held executive roles at several public and private oncology drug discovery and development companies.

The Scan

Purnell Choppin Dies

Purnell Choppin, a virologist who led the Howard Hughes Medical Institute, has died at 91, according to the Washington Post.

Effectiveness May Decline, Data From Israel Suggests

The New York Times reports that new Israeli data suggests a decline in Pfizer-BioNTech SARS-CoV-2 vaccine effectiveness against Delta variant infection, though protection against severe disease remains high.

To See Future Risk

Slate looks into the use of polygenic risk scores in embryo screening.

PLOS Papers on Methicillin-Resistant Staphylococcus, Bone Marrow Smear Sequencing, More

In PLOS this week: genomic analysis of methicillin-resistant Staphylococcus pseudintermedius, archived bone marrow sequencing, and more.