Serological profile of naïve patients affected by the first sars-cov-2 variant: A prospective study - Wafa Dhouib; Meriem Kacem; Oumayma belghayeb; Meriem Oumaima Beji; Cyrine Bennasrallah; Ameni Maatouk; Imen Zemni; Hela Abroug; Ines bouanene; Haythem Sriha; Maha Mastouri; Mourad ghali; et al. (PLoS ONE, 2026)