“Don’t use bootleg vaping products.” That’s the basic message from the Centers for Disease Control and Prevention. The government agency also warned that e-cigarettes should not be used by children, young adults, pregnant women or adults who do not use tobacco products. (New York Times)

The CDC’s warning comes as it investigates more than 200 cases of a breathing illness in 25 states that has been tied to vaping. Officials said some of the cases involve THC, which is the mind-altering substance in marijuana. (Associated Press)

Juul, which makes the most popular vaping product on the market, is facing increasing pressure from state officials. Attorneys general from Illinois and Washington, DC, are investigating the roots of the teen vaping epidemic. Members of Congress and federal officials are also looking into the company. (Associated Press)

The U.S. Patent Office will examine patents for Alexion Pharmaceuticals’ treatment for blood disorders after a challenge from Amgen. Soliris is Alexion’s best-selling drug, accounting for more than 80% of its sales in the last quarter. (Reuters)

Novartis has highlighted study results on its prospective multiple sclerosis treatment ofatumumab in the hopes that it could challenge Roche’s Ocrevus treatment. Ofatumumab has been approved under the Arzerra branding to treat leukemia. (Reuters)