Featured Research

from universities, journals, and other organizations

New TB vaccine provides stronger, longer-lasting protection

Date:
January 26, 2011
Source:
NIH/National Institute of Allergy and Infectious Diseases
Summary:
Researchers have found that a new vaccine strategy tested in mice provides stronger, more long-lasting protection from tuberculosis infection than the vaccine currently used in humans, known as BCG.

A team of U.S. and European researchers have found that a new vaccine strategy tested in mice provides stronger, more long-lasting protection from tuberculosis (TB) infection than the vaccine currently used in humans, known as BCG. Their findings were published online on January 23rd in the journal Nature Medicine.

The study was co-funded by the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, and the Bill & Melinda Gates Foundation. It was coordinated by the NIAID-funded TB Vaccine Testing and Research Materials program at Colorado State University, an initiative to speed the development of new TB vaccines and treatments.

Caused by the bacterium Mycobacterium tuberculosis (Mtb), TB remains one of the major causes of disability and death worldwide, with an estimated 1.7 million deaths in 2009 and increasing rates of drug-resistant disease. The BCG vaccine, the only one approved for human use, provides some protection against initial TB illness but does not prevent latent infection, in which Mtb persists in human cells for years and may later develop into active disease.

In this study, the researchers combined two proteins previously found to improve the BCG vaccine's effectiveness with a new component, a stress response protein that mice produce throughout the TB infection process. This three-component vaccine, known as H56, was administered to uninfected mice before and after BCG vaccination. Six weeks later, the mice were exposed to Mtb. The multistage strategy not only protected against initial illness, but controlled reactivation of latent infection and reduced Mtb levels in the lungs more effectively than BCG alone. Because of the success of this study, the vaccine candidate is now entering clinical development.


Story Source:

The above story is based on materials provided by NIH/National Institute of Allergy and Infectious Diseases. Note: Materials may be edited for content and length.


Journal Reference:

  1. Claus Aagaard, Truc Hoang, Jes Dietrich, Pere-Joan Cardona, Angelo Izzo, Gregory Dolganov, Gary K Schoolnik, Joseph P Cassidy, Rolf Billeskov, Peter Andersen. A multistage tuberculosis vaccine that confers efficient protection before and after exposure. Nature Medicine, 2011; DOI: 10.1038/nm.2285

Cite This Page:

NIH/National Institute of Allergy and Infectious Diseases. "New TB vaccine provides stronger, longer-lasting protection." ScienceDaily. ScienceDaily, 26 January 2011. <www.sciencedaily.com/releases/2011/01/110125111002.htm>.
NIH/National Institute of Allergy and Infectious Diseases. (2011, January 26). New TB vaccine provides stronger, longer-lasting protection. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2011/01/110125111002.htm
NIH/National Institute of Allergy and Infectious Diseases. "New TB vaccine provides stronger, longer-lasting protection." ScienceDaily. www.sciencedaily.com/releases/2011/01/110125111002.htm (accessed April 24, 2014).

Share This



More Health & Medicine News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Fungus Killing Bats, Spreading in US

Deadly Fungus Killing Bats, Spreading in US

AP (Apr. 24, 2014) A disease that has killed more than six million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. White Nose Syndrome, discovered in New York in 2006, has now spread to 25 states. (April 24) Video provided by AP
Powered by NewsLook.com
Companies Ramp Up Wellness to Lower Health Costs

Companies Ramp Up Wellness to Lower Health Costs

AP (Apr. 24, 2014) That little voice telling you to exercise, get in shape and get healthy is probably coming from your boss. More companies are beefing up wellness programs to try and cut down their health care costs. (April 24) Video provided by AP
Powered by NewsLook.com
FDA Wants To Ban Sales Of E-Cigarettes To Minors

FDA Wants To Ban Sales Of E-Cigarettes To Minors

Newsy (Apr. 24, 2014) The Food and Drug Administration wants to crack down on the use of e-cigarettes, banning the sale of the product to minors. Video provided by Newsy
Powered by NewsLook.com
Michigan Man Sees Thanks to 'bionic Eye'

Michigan Man Sees Thanks to 'bionic Eye'

AP (Apr. 23, 2014) A legally blind Michigan man is 'seeing something new every day' thanks to a high-tech retinal implant procedure. He's one of the first in the country to receive a 'bionic eye' since the federal government approved the surgery. (April 23) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins