Covid-19: Delta infections threaten herd immunity vaccine strategy

  title={Covid-19: Delta infections threaten herd immunity vaccine strategy},
  author={Owen Dyer},
TheCDCpublished theProvincetowndata on 30 July, but a slide presentation mentioning the findings on viral loadwasobtained in advanceby theWashington Post.2 Epidemiologists who were shown these findings told the newspaper that they changed the calculus going forward. “I finished reading it significantly more concerned than when I began,” said Robert Wachter, chairman of the Department of Medicine at the University of California at San Francisco. 
Policy considerations for mandatory COVID-19 vaccination from the Collaboration on Social Science in Immunisation.
Vaccination is now required for domestic air travel to Western Australia for coronavirus disease 2019 (COVID-19), and vaccination for workers in certain sectors is already mandated. Expand
Assessing the Level and Determinants of COVID-19 Vaccine Confidence in Kenya
There is a need for the prioritization of interventions to address vaccine hesitancy and improve vaccine confidence as part of the vaccine roll-out plan. Expand
Estimates of presumed population immunity to SARS-CoV-2 by state in the United States, August 2021
The US remains a distance below the threshold sufficient to disrupt viral transmission, with some states remarkably low, and it is critical that vaccination efforts intensify across all states and ages for which the vaccines are approved. Expand
Characterizing the spatiotemporal heterogeneity of the COVID-19 vaccination landscape
It is found that COVID-19 vaccination coverage in the US exhibits significant spatial heterogeneity at the county level and statistically identify spatial clusters of undervaccination, all with foci in the southern US. Expand
When do we need massive computations to perform detailed COVID-19 simulations?
The results indicate that accurate machine learning meta-models can be generated from simulation models with no strong interventions using small amounts of simulation data, and that machine learningmeta-models could be used in some scenarios to assist in faster decision making. Expand
Immune Responses against SARS-CoV-2—Questions and Experiences
  • Harald Mangge, Markus Kneihsl, Wolfgang Schnedl, Gerald Sendlhofer, Francesco Curcio, Rossana Domenis
  • Medicine
  • Biomedicines
  • 2021
Concerns remain whether these vaccines will be strong enough to defeat the pandemic, and experiences and open questions about the complex immune responses to SARS-CoV-2 are discussed. Expand


Outbreak of SARS-CoV-2 Infections, Including COVID-19 Vaccine Breakthrough Infections, Associated with Large Public Gatherings — Barnstable County, Massachusetts, July 2021
  • Catherine M. Brown, J. Vostok, +20 authors A. S. Laney
  • Medicine
  • MMWR. Morbidity and mortality weekly report
  • 2021
Findings from this investigation suggest that even jurisdictions without substantial or high COVID-19 transmission might consider expanding prevention strategies, including masking in indoor public settings regardless of vaccination status, given the potential risk of infection during attendance at large public gatherings that include travelers from many areas with differing levels of transmission. Expand