Vaccine-maker Novavax kicks off trial forcombined Covid-19/flu jab - https://t.co/vRNDpIpI8s - American vaccine-maker Novavax has started its early stage trial ofa vaccine which combines an as-yet-unapproved Covid-19 shot withthe company’s NanoFlu influenza jab. ... pic.twitter.com/UkKjeKwvAJ