Public health officials are trying to trace an unidentified person in England who has been infected with the variant of SARS-CoV-2 first identified in Manaus in […]
Ghana’s President Nana Akufo-Addo on Monday became the first recipient of a coronavirus vaccine under the global Covax scheme, as US health workers prepared to distribute […]
An oxysterol that accumulates in the eye with age can transform choroidal endothelial cells; interfering with the process might help patients with treatment-resistant age-related macular degeneration.