Featured Research

from universities, journals, and other organizations

Efforts To Eliminate Tuberculosis In US By 2010 Fall Far Short Of Benchmarks

Date:
February 5, 2008
Source:
American Thoracic Society
Summary:
The US is likely to fall far short of its benchmark goals toward eliminating tuberculosis as a public health problem, according to data from a nationwide survey.

The U.S. is likely to fall far short of its benchmark goals toward eliminating tuberculosis as a public health problem, according to data from a nationwide survey.

Related Articles


Latent TB infection (LTBI) prevalence in the 1999-2000 U.S. population (excluding homeless and incarcerated individuals) was found to be 4.2 percent, according to the survey. The current infection rate would have to be 1 percent and decreasing if the U.S. were on course to reach its goal of TB incidence of less than one per million by 2010. These are the first survey-based national LBTI estimates since 1971-1972.

"Persons with LTBI are not infectious and cannot transmit TB to others, and only 5-10 percent of individuals with LTBI will go on to develop active TB, which is infectious. But because the risk of progression to TB can be substantially reduced by preventive treatment, it is crucial that LTBI by detected and treated," said lead author Diane Bennett, M.D., M.P.H., of the Centers for Disease Control and Prevention.

The National Health and Nutritional Examination Survey (NHANES), a cross-sectional series of nationally representative health examination surveys, suggests that of the 11,213,000 with LTBI in the overall U.S. population, only one in four had been diagnosed, and only 13 percent had been prescribed treatment.

"The LTBI rates among non-Hispanic whites, 1.9 percent, is close to that required for TB elimination, but the far higher rates among all other groups make U.S. TB elimination by 2010 unlikely," wrote Dr. Bennett and senior author Kenneth Castro, M.D., M.P.H.

In this study, researchers used data from 1999-2000 on 7,386 participants with TB skin test results. They intentionally over-sampled people with low income, adolescents, people over age 60, African-Americans, and Mexican-Americans so as to allow for separate analyses of these groups. The survey estimated that approximately 11 million individuals had LTBI in 1999-2000. While that represents a marked decline from the early 1970s, it also masks the shifting demographics of those who have LTBI.

Latent TB infections among individuals living below the poverty level, at 6.1 percent, were significantly higher than the 3.3 percent among individuals living above the poverty level. Because the data excludes homeless and incarcerated individuals, who make up much of the U.S. population living below the poverty line, the association may be even stronger than suggested.

Race and ethnicity were also associated with LTBI, even after accounting for socioeconomic status. "Among individuals born in the United States, higher LTBI rates were seen among non-Hispanic blacks and Mexican Americans compared with non-Hispanic whites," wrote Dr. Bennett.

Most striking, however, was the rate of infection among foreign-born individuals. In this survey, 18.7 percent of foreign-born individuals were infected with TB, compared to 1.8 percent of those born in the U.S. In 1999-2000, 6.9 million of the individuals with LTBI were foreign-born, as compared with 4.1 million U.S.-born; only 12 percent of the foreign-born and 16 percent of the U.S.-born had received treatment.

"The higher LTBI rates among some subgroups suggest that specific public health actions should be taken for and with immigrant communities, racial minorities and individuals living in poverty," Dr. Bennett said. "While LTBI is not infectious and latently infected individuals are not a threat to others, increased outreach for education, diagnosis and provision of appropriate preventive treatment could prevent many future cases of active TB."

The findings were published in the first issue for February of the American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society.


Story Source:

The above story is based on materials provided by American Thoracic Society. Note: Materials may be edited for content and length.


Cite This Page:

American Thoracic Society. "Efforts To Eliminate Tuberculosis In US By 2010 Fall Far Short Of Benchmarks." ScienceDaily. ScienceDaily, 5 February 2008. <www.sciencedaily.com/releases/2008/02/080201085740.htm>.
American Thoracic Society. (2008, February 5). Efforts To Eliminate Tuberculosis In US By 2010 Fall Far Short Of Benchmarks. ScienceDaily. Retrieved October 25, 2014 from www.sciencedaily.com/releases/2008/02/080201085740.htm
American Thoracic Society. "Efforts To Eliminate Tuberculosis In US By 2010 Fall Far Short Of Benchmarks." ScienceDaily. www.sciencedaily.com/releases/2008/02/080201085740.htm (accessed October 25, 2014).

Share This



More Health & Medicine News

Saturday, October 25, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Texas Nurse Nina Pham Cured of Ebola

Texas Nurse Nina Pham Cured of Ebola

AFP (Oct. 25, 2014) — An American nurse who contracted Ebola while caring for a Liberian patient in Texas has been declared free of the virus and will leave the hospital. Duration: 01:01 Video provided by AFP
Powered by NewsLook.com
IKEA Desk Converts From Standing to Sitting With One Button

IKEA Desk Converts From Standing to Sitting With One Button

Buzz60 (Oct. 24, 2014) — IKEA is out with a new convertible desk that can convert from a sitting desk to a standing one with just the push of a button. Jen Markham explains. Video provided by Buzz60
Powered by NewsLook.com
Ebola Protective Suits Being Made in China

Ebola Protective Suits Being Made in China

AFP (Oct. 24, 2014) — A factory in China is busy making Ebola protective suits for healthcare workers and others fighting the spread of the virus. Duration: 00:38 Video provided by AFP
Powered by NewsLook.com
WHO: Millions of Ebola Vaccine Doses by 2015

WHO: Millions of Ebola Vaccine Doses by 2015

AP (Oct. 24, 2014) — The World Health Organization said on Friday that millions of doses of two experimental Ebola vaccines could be ready for use in 2015 and five more experimental vaccines would start being tested in March. (Oct. 24) 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:

Strange & Offbeat Stories

 

Health & Medicine

Mind & Brain

Living & Well

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