Bay Area-based Graphite Bio launched with $45 million in Series A financing and a goal to use gene editing to correct defective genes through high-efficiency site-specific integration of new genetic sequences.

A Biogen corporate meeting held in Boston in March that was initially connected to about 100 cases of COVID-19 could have led to a significantly higher number of infections.

Switzerland’s Roche acquired genetic sequencing company Stratos Genomics for an undisclosed amount.

In the halls of MD Anderson Cancer Center, Vitrakvi is known for having a “Lazarus effect” in some patients because the drug can reverse late-stage cancer that has defied all other treatment options.

Bayer struck a collaboration deal with Roche’s Foundation Medicine Inc. to develop test kits for genetic sequencing of tumor cells to identify cancer patients that benefit from Bayer’s Vitrakvi drug.

An Ebola outbreak in Congo has been confirmed as the Zaire strain of the virus, the World Health Organization (WHO) said.