B117 variant of SARS-CoV-2 up to 90% more transmissible; UK experts urge vigilance … Smoking cessation drug may treat Parkinson’s, early evidence suggests … Scream, not swab: Dutch inventor hopes he discovered new COVID test … Stronger COVID antibody response to one vaccine dose found in previously infected healthcare staff … Our eyes may provide early warning signs of Alzheimer’s and Parkinson’s
