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.
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.
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.
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