An illustration of the Vagus nerve, which is part of the autonomic nervous system. Sebastian Kaulitzki/Science Photo Library RF/Getty Images hide caption
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rheumatoid arthritis
A new precision medicine test could help doctors and patients zero in on the right arthritis drug much sooner. But insurance coverage and drug company incentives are hurdles to widespread use. Adam Gault/SPL/Getty Images hide caption
AbbVie's Humira was the world's best-selling drug for many years. Now it faces competition for copycats that cost a fraction of its price. David J. Phillip/AP hide caption
Transmission electron micrograph of particles of SARS-CoV-2 — the coronavirus that causes COVID-19. NIAID/Flickr hide caption
In 2015, the Sandoz unit of drugmaker Novartis won Food and Drug Administration approval of a drug called Zarxio, which is similar to Amgen's Neupogen, a medicine that boosts the production of white blood cells. Sebastien Bozon/AFP/Getty Images hide caption