tetano
Editor, Senior Moderator
Emerg Infect Dis
. 2023 May 2;29(6).
doi: 10.3201/eid2906.221696. Online ahead of print.
Early SARS-CoV-2 Reinfections Involving the Same or Different Genomic Lineages, Spain
Cristina Rodríguez-Grande, Agustín Estévez, Rosalía Palomino-Cabrera, Andrea Molero-Salinas, Daniel Peñas-Utrilla, Marta Herranz, Amadeo Sanz-Pérez, Luis Alcalá, Cristina Veintimilla, Pilar Catalán, Carolina Martínez-Laperche, Roberto Alonso, Patricia Muñoz, Laura Pérez-Lago, Darío García de Viedma; Gregorio Marañón Microbiology-ID COVID 19 Study Group2
Centers for Disease Control and Prevention guidelines consider SARS-CoV-2 reinfection when sequential COVID-19 episodes occur >90 days apart. However, genomic diversity acquired over recent COVID-19 waves could mean previous infection provides insufficient cross-protection. We used genomic analysis to assess the percentage of early reinfections in a sample of 26 patients with 2 COVID-19 episodes separated by 20-45 days. Among sampled patients, 11 (42%) had reinfections involving different SARS-CoV-2 variants or subvariants. Another 4 cases were probable reinfections; 3 involved different strains from the same lineage or sublineage. Host genomic analysis confirmed the 2 sequential specimens belonged to the same patient. Among reinfections, 36.4% involved non-Omicron, then Omicron lineages. Early reinfections showed no specific clinical patterns; 45% were among unvaccinated or incompletely vaccinated persons, 27% were among persons <18 years of age, and 64% of patients had no risk factors. Time between sequential positive SARS-CoV-2 PCRs to consider reinfection should be re-evaluated.
Keywords: COVID-19; SARS; SARS-CoV-2; Spain; coronavirus; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.
. 2023 May 2;29(6).
doi: 10.3201/eid2906.221696. Online ahead of print.
Early SARS-CoV-2 Reinfections Involving the Same or Different Genomic Lineages, Spain
Cristina Rodríguez-Grande, Agustín Estévez, Rosalía Palomino-Cabrera, Andrea Molero-Salinas, Daniel Peñas-Utrilla, Marta Herranz, Amadeo Sanz-Pérez, Luis Alcalá, Cristina Veintimilla, Pilar Catalán, Carolina Martínez-Laperche, Roberto Alonso, Patricia Muñoz, Laura Pérez-Lago, Darío García de Viedma; Gregorio Marañón Microbiology-ID COVID 19 Study Group2
- PMID: 37130503
- DOI: 10.3201/eid2906.221696
Centers for Disease Control and Prevention guidelines consider SARS-CoV-2 reinfection when sequential COVID-19 episodes occur >90 days apart. However, genomic diversity acquired over recent COVID-19 waves could mean previous infection provides insufficient cross-protection. We used genomic analysis to assess the percentage of early reinfections in a sample of 26 patients with 2 COVID-19 episodes separated by 20-45 days. Among sampled patients, 11 (42%) had reinfections involving different SARS-CoV-2 variants or subvariants. Another 4 cases were probable reinfections; 3 involved different strains from the same lineage or sublineage. Host genomic analysis confirmed the 2 sequential specimens belonged to the same patient. Among reinfections, 36.4% involved non-Omicron, then Omicron lineages. Early reinfections showed no specific clinical patterns; 45% were among unvaccinated or incompletely vaccinated persons, 27% were among persons <18 years of age, and 64% of patients had no risk factors. Time between sequential positive SARS-CoV-2 PCRs to consider reinfection should be re-evaluated.
Keywords: COVID-19; SARS; SARS-CoV-2; Spain; coronavirus; coronavirus disease; respiratory infections; severe acute respiratory syndrome coronavirus 2; viruses; zoonoses.