The study found that, since 1990, pollen seasons lengthened by 20 days and contained 21% more pollen. The researchers attributed roughly half of the lengthening pollen seasons and 8% of the trend in pollen concentrations to climate changes driven by human activity.
Allergy
NIH Researchers Estimate 17% of Food-Allergic Children Have Sesame Allergy
Investigators at the National Institutes of Health have found that sesame allergy is common among children with other food allergies, occurring in an estimated 17% of this population.
Disrupting the Gut Microbiome May Affect Some Immune Responses to Flu Vaccination
The normal human gut microbiome is a flourishing community of microorganisms, some of which can affect the human immune system. In a new paper published this week in Cell, researchers found that oral antibiotics, which can kill gut microorganisms, can alter the human immune response to seasonal influenza vaccination.