Jeromie Wesley Vivian Thangaraj et al.: Predominance of delta variant among the COVID-19 vaccinated and unvaccinated individuals, India, May 2021. In: Journal of Infection. Band83, Nr.2, August 2021, doi:10.1016/j.jinf.2021.08.006 (englisch): “India experienced a severe secod wave of SARS-CoV-2 infections during the months of April and May 2021. […] During the course of second wave in India, Delta B.1.617.2 variant emerged as the major sub-lineage among variants that also included B1617.1, B.617.3 and B.1.1.7.”
Mlcochova, P. et al. in Nature: SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion. (PDF) nature.com, 6. September 2021, abgerufen am 7. September 2021 (englisch): „B.1.617.2 (Delta) variant was first identified in the state of Maharashtra in late 2020 and spread throughout India, outcompeting pre-existing lineages including B.1.617.1 (Kappa) and B.1.1.7 (Alpha).“doi:10.1038/s41586-021-03944-y
Nathaniel Landau et al.: The Spike Proteins of SARS-CoV-2 B.1.617 and B.1.618 Variants Identified in India Provide Partial Resistance to Vaccine-elicited and Therapeutic Monoclonal Antibodies.bioRxiv 16. Mai 2021, doi:10.1101/2021.05.14.444076
V. Krishna Mohan: Neutralization of variant under investigation B.1.617 with sera of BBV152 vaccinees. biorxiv, 23. April 2021, doi:10.1101/2021.04.23.441101
Mehul Suthar et al.: Infection and vaccine-induced neutralizing antibody responses to the SARS-CoV-2 B.1.617.1 variant. bioRxiv. 10. Mai 2021 doi:10.1101/2021.05.09.443299
Tzou, P.L. et al., Stanford University: SARS-CoV-2 Variants. Variants genome viewer. In: Coronavirus Antiviral Research Database (CoV-RDB), Resistance Database. stanford.edu, 7. September 2021, abgerufen am 9. September 2021 (englisch, Outbreak.info B.1.617.1, B.1.617.2, B.1.617.3 Lineage Reports).doi:10.3390/v12091006
ECDC: SARS-CoV-2 variants of concern as of 6 September 2021. In: COVID-19/Situation updates on COVID-19/Variants of concern. ecdc.europa.eu, 6. September 2021, abgerufen am 6. September 2021 (englisch): „Spike mutations of interest: not all spike protein amino acid changes are included – this is not a full reference for assignment of the variants. It includes changes to spike protein residues 319-541 (receptor binding domain) and 613-705 (the S1 part of the S1/S2 junction and a small stretch on the S2 side), and any additional unusual changes specific to the variant. […] Delta B.1.617.2 […] Spike mutations of interest […] L452R, T478K, D614G, P681R“
Mlcochova, P. et al. in Nature: SARS-CoV-2 B.1.617.2 Delta variant replication and immune evasion. (PDF) nature.com, 6. September 2021, abgerufen am 7. September 2021 (englisch): „B.1.617.2 (Delta) variant was first identified in the state of Maharashtra in late 2020 and spread throughout India, outcompeting pre-existing lineages including B.1.617.1 (Kappa) and B.1.1.7 (Alpha).“doi:10.1038/s41586-021-03944-y
Delphine Planas et al.: Reduced sensitivity of SARS-CoV-2 variant Delta to antibody neutralization. In: Nature. Nr.596, 2021, S.276–280 (englisch, nature.com [abgerufen am 3. Mai 2022]).