American children are increasingly exposed to air pollution as wildfire smoke becomes more common, and some schools and childcare centers struggle to keep indoor breathing conditions clean, a new national study shows.

Australian researchers map, in unprecedented detail, the immune cells through which genetic differences between people influence disease. The researchers analysed the gene sequence and activity of more than 5 million individual immune cells from nearly 2,000 people, the largest dataset of its kind in the world. The findings open a path to precision medicine for diseases ranging from autoimmune conditions like multiple sclerosis to neurological conditions such as Alzheimer’s and cancers including breast and prostate.

A study in Eye Discovery comparing 29 children with Marcus Gunn jaw-winking syndrome and 57 children with simple congenital blepharoptosis suggests that children with MGJWS may face greater risks of impaired visual development and reduced hyperopic reserve, underscoring the need for individualized assessment of surgical timing.