Wirken die Impfungen auch gegen Delta?

• Englische Studie: J. Bernal et al., 21.7.21, "Effectiveness of Covid-19 Vaccines against the B.1.617.2 (Delta) Variant", NEJM
• Schottische Studie mit Hospitalisierungsangaben: A. Sheikh et al., 26.6.21, "SARS-CoV-2 Delta VOC in Scotland: demographics, risk of hospital admission, and vaccine effectiveness", The Lancet

Können Geimpfte Überträger sein? C. Brown et al., 30.7.21, "Outbreak of SARS-CoV-2 Infections, Including COVID-19 Vaccine Breakthrough Infections, Associated with Large Public Gatherings — Barnstable County, Massachusetts, July 2021", Morbidity and Mortality Weekly Report (MMWR), CDC Preprint vom Imperial College: P. Elliott et al., "REACT-1 round 13 final report: exponential growth,high prevalence of SARS-CoV-2and vaccine effectiveness associated with Delta variantin England during May to July2021", Preprint Israelische Studie: M. Bergwerk et al., 28.7.21., "Covid-19 Breakthrough Infections in Vaccinated Health Care Workers", NEJM Studie zur Verbreitung von Delta in den USA: A. Bolze et al., 21.6.21, "Rapid displacement of SARS-CoV-2 variant B.1.1.7 by B.1.617.2 and P.1 in the United States", Preprint Tausendfache Virenlast: B. Li et al., 23.7.21, "Viral infection and transmission in a large, well-traced outbreak caused by the SARS-CoV-2 Delta variant", Preprint Preprint aus Singapur, Po Yin Chia et al, 31.7.21, „Virological and serological kinetics of SARS-CoV-2 Delta variant vaccine-breakthrough infections: a multi-center cohort study“, medRxiv Preprint zur Lambda-Variante, Izumi Kimura et al, "SARS-CoV-2 Lambda variant exhibits higher infectivity and immune resistance", bioRxiv