ADVERTISEMENT
site_logo
  • Campus
  • Happening
  • Opinion
  • People
  • News
  • #BeInspired
  • Careers
  • 40 under 40
  • Exams
  • What The FAQ
  • Videos
    • Straight Up
    • Odisha Literary Festival 2020
    • Campus Convo
    • Careers After Corona
    • Express Expressions
    • Q&A With Prabhu Chawla
    • ThinkEdu Awards 2020
  • Web Stories
  • edex_worksEDEXWORKS
ADVERTISEMENT
COVID

Published: 13th May 2021     

Delaying the second vaccine dose for COVID in people below 65 may cut deaths, says a new study

If these conditions apply, the strategy could prevent between 47 and 26 deaths per 100,000 people, respectively, the study noted

Edex Live
Edex Live
f_icon t_icon i_icon l_icon koo_icon whatsapp_icon email_icon Google News

Share Via Email

vaccine-5873170_1920

Representative Image | Pixabay

A team of US researchers has found that delaying the second dose of COVID-19 vaccines, at least for people aged under 65, could result in up to 20 per cent lower mortality, but only under certain conditions. These conditions include a one-dose vaccine effectiveness (efficacy) of 80 per cent or higher and vaccination rates of 0.1 per cent to 0.3 per cent of the population per day, according to the study, published by The BMJ.

If these conditions apply, the strategy could prevent between 47 and 26 deaths per 100,000 people, respectively, the study noted. "Decision-makers will need to consider their local vaccination rates and weigh the benefits of increasing these rates by delaying a second dose versus the risks associated with the remaining uncertainty in this strategy," write researchers including Thomas C Kingsley, Assistant Professor of Medicine at Mayo Clinic, Minnesota.

"These decisions should continue to be re-evaluated as new data become available," the researchers added. Both the Pfizer and Moderna vaccines in a standard two-dose schedule are highly effective at preventing symptomatic infections and death. But immunity worldwide remains low, partly owing to low vaccination rates.

The longer it takes to effectively vaccinate the global population, the greater the likely risk of vaccine-resistant strains developing. This has led to calls to prioritise single-dose vaccination for as many people as possible, even if this means delaying a second dose beyond the studied time frame.

"The justification for this relies on the assumption that meaningful protection against COVID-19 can be achieved after a single dose of vaccine, but this is the subject of intense debate," the team said.

To explore this further, they set out to measure the impact of delayed second dose vaccine policies on infections, hospital admissions, and deaths compared with the current on-schedule two dose regimen. Using a simulation model based on a "real-world" sample population of 100,000 US adults, the team ran a series of scenarios over a six-month period.

The results suggest that a delayed second dose strategy is optimal for vaccination rates at or lower than 0.3 per cent population per day if the vaccine efficacy from one dose is 80 per cent or greater.

telegram
TAGS
COVID

O
P
E
N

ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT
telegram
ADVERTISEMENT
Write to us!

If you have campus news, views, works of art, photos or just want to reach out to us, just drop us a line.

newsletter_icon
Mailbox
edexlive@gmail.com
fb_icon
Facebook
twitter_icon
Twitter
insta_icon
Instagram
ADVERTISEMENT
Facebook
ADVERTISEMENT
Tweets by Xpress_edex
ADVERTISEMENT
ADVERTISEMENT

FOLLOW US

The New Indian Express | The Morning Standard | Dinamani | Kannada Prabha | Samakalika Malayalam | Cinema Express | Indulgexpress | Events Xpress

Contact Us | About Us | Privacy Policy | Terms of Use | Advertise With Us

Home | Live Now | Live Story | Campus Trip | Coach Calling | Live Take

Copyright - edexlive.com 2023. All rights reserved. Website Designed, Developed & Maintained by Express Network Private Ltd.