Moderna has filed complaints in the US and Germany claiming that the mRNA technology used to make Pfizer and BioNTech's Comirnaty vaccine infringes multiple patents that cover its own Spikevax shot.

Moderna swung to a loss in the last three months of the year after an early launch of its updated Covid-19 vaccine shifted sales out of the fourth quarter. The maker of the Spikevax Covid-19 ...