Amid a torrent of biotech layoffs, Massachusetts mRNA star Moderna is staffing up big time, and the company’s new chief technical operations officer figures this is just the start. Eyeing potential launches beyond its COVID-19 vaccine Spikevax, Moderna will hire roughly 2,000 new employees in 2023, the company recently told Fierce Pharma. That should bring the biotech’s total headcount to around 6,000 before the year is out, Jerh Collins, Ph.D., Moderna’s chief technical operations and quality officer, said in an interview. Recent clinical wins for Moderna's mRNA candidates in melanoma and respiratory syncytial virus (RSV) show "that the pipeline is...