Covid-19: everything you need to know about the next vaccination campaign, which begins on April 15. The objective remains to “protect the most fragile likely to develop serious forms and present severe complications” The vaccines for the spring campaign will be, first line, that of Pfizer/BioNTech (messenger RNA) targeting the Omicron XBB.1.5 variant or that of Novavax (recombinant protein) Less than a third of French people aged 65 and over received an anti-C Covid reminder.