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As long as the virus continues to circulate, vaccination will remain necessary, and this will probably last for years ”. Sergio Abrignani, member of the CTS, full professor of Immunology at the State University of Milan and director of the Invernizzi National Institute of Molecular Genetics, takes stock of the vaccination campaign two years after the start of the pandemic, while tomorrow the obligation to Super Green Pass at work for over 50s.