Drug Discovery and Development

  • Home Drug Discovery and Development
  • Drug Discovery
  • Women in Pharma and Biotech
  • Oncology
  • Neurological Disease
  • Infectious Disease
  • Resources
    • Video features
    • Podcast
    • Webinars
  • Pharma 50
    • 2025 Pharma 50
    • 2024 Pharma 50
    • 2023 Pharma 50
    • 2022 Pharma 50
    • 2021 Pharma 50
  • Advertise
  • SUBSCRIBE

COVID-19 vaccination halves reinfection risk according to CDC study

The study, though encouraging, was conducted before the rise of the Delta variant.

By Brian Buntz | August 6, 2021

Coronavirus vaccine

[Image courtesy of Wikipedia]

Among those with previous COVID-19 infections, those who were unvaccinated were 2.34 times more likely to get infected again than vaccinated individuals, according to a CDC report.

“Getting the vaccine is the best way to protect yourself and others around you, especially as the more contagious Delta variant spreads around the country,” said CDC director Dr. Rochelle Walensky in a statement.

The study drew from COVID-19 cases in Kentucky from May to June 2021, before the Delta variant became widespread.

The study had 246 cases of COVID-19 and 492 controls. In the total population, 83% had prior COVID-19 infections between October and December 2020.

The study authors noted that the continued emergence of new variants could influence infection-acquired immunity. Prior studies have shown that natural infection leads to a weak or inconsistent response to multiple variants of concern.

The study authors noted that the study had several limitations. For instance, investigators did not confirm reinfection with whole-genome sequencing. They also postulate that vaccinated individuals may be less likely to seek COVID-19 testing.

The authors concluded that additional data might be required to bolster the findings.


Filed Under: Infectious Disease
Tagged With: CDC, coronavirus, covid-19, COVID-19 vaccine, COVID-19 vaccine trial, COVID-19 vaccines
 

About The Author

Brian Buntz

As the pharma and biotech editor at WTWH Media, Brian has almost two decades of experience in B2B media, with a focus on healthcare and technology. While he has long maintained a keen interest in AI, more recently Brian has made making data analysis a central focus, and is exploring tools ranging from NLP and clustering to predictive analytics.

Throughout his 18-year tenure, Brian has covered an array of life science topics, including clinical trials, medical devices, and drug discovery and development. Prior to WTWH, he held the title of content director at Informa, where he focused on topics such as connected devices, cybersecurity, AI and Industry 4.0. A dedicated decade at UBM saw Brian providing in-depth coverage of the medical device sector. Engage with Brian on LinkedIn or drop him an email at bbuntz@wtwhmedia.com.

Related Articles Read More >

Coronavirus Covid-19 background - 3d rendering
Pregnancy associated with less long COVID: Researchers call for studies on protective biology
How technology advances are helping scientists unlock the mysteries of zoonotic diseases
Novel coronovirus
Advances in next generation vaccine development for SARS-CoV-2
Gay couple enjoying life together
World AIDS Day Summit & Celebration slated for early December
“ddd
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest news and trends happening now in the drug discovery and development industry.

MEDTECH 100 INDEX

Medtech 100 logo
Market Summary > Current Price
The MedTech 100 is a financial index calculated using the BIG100 companies covered in Medical Design and Outsourcing.
Drug Discovery and Development
  • MassDevice
  • DeviceTalks
  • Medtech100 Index
  • Medical Design Sourcing
  • Medical Design & Outsourcing
  • Medical Tubing + Extrusion
  • Subscribe to our E-Newsletter
  • Contact Us
  • About Us
  • R&D World
  • Drug Delivery Business News
  • Pharmaceutical Processing World

Copyright © 2025 WTWH Media LLC. All Rights Reserved. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media
Privacy Policy | Advertising | About Us

Search Drug Discovery & Development

  • Home Drug Discovery and Development
  • Drug Discovery
  • Women in Pharma and Biotech
  • Oncology
  • Neurological Disease
  • Infectious Disease
  • Resources
    • Video features
    • Podcast
    • Webinars
  • Pharma 50
    • 2025 Pharma 50
    • 2024 Pharma 50
    • 2023 Pharma 50
    • 2022 Pharma 50
    • 2021 Pharma 50
  • Advertise
  • SUBSCRIBE