How COVID-19 causes smell loss

At a glance: Loss of smell is the main neurological symptom of COVID-19, but the underlying mechanism has been unclear New study shows infection of nonneuronal supporting cells in the nose and forebrain may be responsible for loss of smell in patients with COVID-19 Findings suggest olfactory sensory neurons are not vulnerable to SARS-CoV-2…

Another mRNA-based vaccine candidate protects animals against SARS-CoV-2

An experimental messenger RNA (mRNA)-based vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) elicits protective immune responses in mice and non-human primates, researchers report on July 23rd in the journal Cell. Two injections of the vaccine were sufficient to induce robust immunity, completely preventing SARS-CoV-2 infection in mice. “The robust protection observed in the…