By the time patients start seeking care for multiple sclerosis (MS), the disease has already been damaging their brains for years. But until recently, scientists didn’t understand which brain cells were being targeted or when the injury began.  

Peanuts represent one of the most common causes of immunoglobulin E (IgE)-mediated, or anaphylactic, food allergies in children, yet a landmark study found that early introduction of peanut to infants may lower their risk of developing this allergy. Now, a new study has shown that the rates of diagnosis of peanut and other IgE-mediated food allergies have declined since the adoption of guidelines encouraging early introduction practices.