Dear Carlos De Las Heras-Pedrosa as mentioned by Arvind Singh fortunately the Pfizer / BioNTech and Moderna COVID-19 vaccines are both effective against the new variants of SARS-CoV-2. Please also see this useful link entitled "Moderna COVID-19 Vaccine Retains Neutralizing Activity Against Emerging Variants First Identified in the U.K. and the Republic of South Africa" https://investors.modernatx.com/news-releases/news-release-details/moderna-covid-19-vaccine-retains-neutralizing-activity-against/
Dear Carlos De Las Heras-Pedrosa I'm afraid that the new coronavirus variants will make the fight against COVID-19 even more difficult. Please see this relevant link entitled
"We lost to SARS-CoV-2 in 2020. We can defeat B-117 in 2021"