A roundup of some of the latest scientific studies on the novel coronavirus includes research on whether a childhood vaccine may help prevent severe Covid-19 and whether cigarette smoke increases cell vulnerability to Covid-19.

Cambridge, Massachusetts-based Moderna is one of the first companies to move a vaccine against COVID-19 into clinical trials.

An international team of researchers led by the University of Manchester developed a new antiviral using natural glucose derivatives called cyclodextrins – a type of sugar – which shows promise in treating a broad range of viruses including herpes simplex, respiratory syncytial virus, hepatitis C, HIV and Zika virus.