TB Blood Tests Faulty - WHO

Manila Bulletin, July 21, 2011 | Go to article overview

TB Blood Tests Faulty - WHO


GENEVA, Switzerland (Reuters) - The World Health Organisation (WHO) called on Wednesday for an immediate halt to the use of blood tests to detect active tuberculosis, saying they were faulty and leave millions of people at risk.

Production of the test kits, WHO officials said, was largely by Western companies which export them to developing countries because they have not passed regulatory standards in rich nations.

"Overwhelming evidence showed that the blood tests produced an unacceptable level of wrong results" which led to misdiagnosis and mistreatment, the United Nations agency said after a year-long analysis.

Studies showed that at least half the tests find the disease in patients when it is absent or give the all-clear when TB is present. "So they put patients lives in danger," said WHO TB prevention chief Mario Raviglione.

At least two million of the tests are carried out each year in 17 poorer nations - including China and India - almost exclusively by doctors and health workers in the private or semi-private sector, according to the WHO.

"The WHO is urging countries to ban the inaccurate and unproved blood tests and instead rely on accurate microbiological or molecular tests, as recommended by the WHO," a statement from the agency said.

WHO TB specialist Karin Weyer told a news conference to announce the highly unusual move by the agency that it had been asked by the government of India to launch a detailed analysis of the tests - on sale since the mid-1990s.

The WHO had never recommended their use. The tests "are often targeted at countries with weak regulatory mechanisms for diagnostics, where questionable marketing incentives can override the interests of patients", Weyer said.

GENEVA, Switzerland (Reuters) - The World Health Organisation (WHO) called on Wednesday for an immediate halt to the use of blood tests to detect active tuberculosis, saying they were faulty and leave millions of people at risk. …

The rest of this article is only available to active members of Questia

Sign up now for a free, 1-day trial and receive full access to:

  • Questia's entire collection
  • Automatic bibliography creation
  • More helpful research tools like notes, citations, and highlights
  • Ad-free environment

Already a member? Log in now.

Notes for this article

Add a new note
If you are trying to select text to create highlights or citations, remember that you must now click or tap on the first word, and then click or tap on the last word.
One moment ...
Default project is now your active project.
Project items

Items saved from this article

This article has been saved
Highlights (0)
Some of your highlights are legacy items.

Highlights saved before July 30, 2012 will not be displayed on their respective source pages.

You can easily re-create the highlights by opening the book page or article, selecting the text, and clicking “Highlight.”

Citations (0)
Some of your citations are legacy items.

Any citation created before July 30, 2012 will labeled as a “Cited page.” New citations will be saved as cited passages, pages or articles.

We also added the ability to view new citations from your projects or the book or article where you created them.

Notes (0)
Bookmarks (0)

You have no saved items from this article

Project items include:
  • Saved book/article
  • Highlights
  • Quotes/citations
  • Notes
  • Bookmarks
Notes
Cite this article

Cited article

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

(Einhorn, 1992, p. 25)

(Einhorn 25)

1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited article

TB Blood Tests Faulty - WHO
Settings

Settings

Typeface
Text size Smaller Larger Reset View mode
Search within

Search within this article

Look up

Look up a word

  • Dictionary
  • Thesaurus
Please submit a word or phrase above.
Print this page

Print this page

Why can't I print more than one page at a time?

Full screen

matching results for page

Cited passage

Style
Citations are available only to our active members.
Sign up now to cite pages or passages in MLA, APA and Chicago citation styles.

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn, 1992, p. 25).

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences." (Einhorn 25)

"Portraying himself as an honest, ordinary person helped Lincoln identify with his audiences."1

1. Lois J. Einhorn, Abraham Lincoln, the Orator: Penetrating the Lincoln Legend (Westport, CT: Greenwood Press, 1992), 25, http://www.questia.com/read/27419298.

Cited passage

Welcome to the new Questia Reader

The Questia Reader has been updated to provide you with an even better online reading experience.  It is now 100% Responsive, which means you can read our books and articles on any sized device you wish.  All of your favorite tools like notes, highlights, and citations are still here, but the way you select text has been updated to be easier to use, especially on touchscreen devices.  Here's how:

1. Click or tap the first word you want to select.
2. Click or tap the last word you want to select.

OK, got it!

Thanks for trying Questia!

Please continue trying out our research tools, but please note, full functionality is available only to our active members.

Your work will be lost once you leave this Web page.

For full access in an ad-free environment, sign up now for a FREE, 1-day trial.

Already a member? Log in now.