Higher COVID-19 vaccination rates are associated with a lower prevalence of parent-reported childhood asthma symptoms, according to a research letter published online July 3 in JAMA Network Open.

"Higher COVID-19 vaccination rates may confer protection against symptomatic asthma," the authors write. "COVID-19 vaccination yields prophylactic benefits against severe acute respiratory syndrome coronavirus 2 infection for individual children and may also protect against other human coronaviruses through cross-reactive antibody responses."

A new study finds that the asthma medication Xolair may substantially reduce severe allergic reactions in people who have multiple food allergies and are accidentally exposed to those foods.