US refuses to delay time between coronavirus vaccine doses

Covid-19 vaccine hesitancy in poorest countries is lower than US

Nanoparticle mRNA vaccine treats and prevents multiple sclerosis in mice. The novel approach, developed by BioNTech, prevented symptomatic disease, reduced disease progression and restored motor functions. It is thought to represent a significant milestone in developing new MS therapies.

South African Oxford AstraZeneca Covid-19 vaccine study a global game-changer