Featured Research

from universities, journals, and other organizations

Decrease in observed rate of TB at a time of economic recession

Date:
November 28, 2011
Source:
BioMed Central
Summary:
The incidence of tuberculosis in the US is reported as being on the decrease, however untreated infected people act as a reservoir for disease.

The incidence of tuberculosis (TB) in the U.S. is reported as being on the decrease, however untreated infected people act as a reservoir for disease. Any pool of the world's population harboring this disease gives cause for concern, especially since the BCG vaccine is only 70-80% effective at best. New research published in BioMed Central's open access journal BMC Public Health shows that in 2009 the number of cases of TB reported across America was much lower than that recorded in previous years.

This larger than expected decrease was most noticeable among recent immigrants, the homeless and other disadvantaged groups, which suggested that the decrease was most likely due to economic recession and lower immigration rates and may mask the future impact of TB.

According to the World Health Organisation it is estimated that as much as a third of the world's population is currently infected with TB, and this is still increasing across Africa and South East Asia. The U.S. National Tuberculosis Surveillance System (NTSS) has shown that, over the 10 year period from January 2000, there has been a year on year decrease of 3.8% in the rate of cases, but in 2009 this dropped to 11.4%. Towards the end of 2009 the rate began to return to normal.

A multicentre team led by Dr Carla Winston from the Centers for Disease Control and Prevention analyzed the NTSS data in conjunction with patient information and changes in reporting procedure. They found that the biggest decrease in reported cases occurred for the group of people who were foreign born and had moved to America in the last two years, and amongst the US-born homeless or drug users. This drop was not related to under-reporting of TB cases, or to improvements in TB control, nor had there been any alteration in the transmission rate of TB.

The researchers hypothesized that the decline could be due to economic recession. TB is usually curable but takes a six-to-nine month course of antibiotics. The authors suggested that during a recession prospective patients may be worried about the cost of a long treatment plan and therefore be less likely to come forward and be treated. An additional factor may be the decrease in immigration seen during the economic downturn. Regardless of recession, eventually people with TB are going to need medical care and, due to the delay in seeking help, their disease may be more severe, more infectious, and more resistant to treatment.


Story Source:

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


Journal Reference:

  1. Carla A Winston, Thomas R Navin, Jose E Becerra, Michael P Chen, Lori R Armstrong, Carla Jeffries, Rachel S Yelk Woodruff, Jessie Wing, Angela M Starks, Craig M Hales, J STEVE Kammerer, William R Mac Kenzie, Kiren Mitruka, Mark C Miner, Sandy Price, Joseph Scavotto, Ann M Cronin, Phillip Griffin, Philip A LoBue and Kenneth G Castro. Detection Unexpected decline in tuberculosis cases coincident with economic recession -- United States, 2009. BMC Public Health, 2011; (in press)

Cite This Page:

BioMed Central. "Decrease in observed rate of TB at a time of economic recession." ScienceDaily. ScienceDaily, 28 November 2011. <www.sciencedaily.com/releases/2011/11/111107033948.htm>.
BioMed Central. (2011, November 28). Decrease in observed rate of TB at a time of economic recession. ScienceDaily. Retrieved April 17, 2014 from www.sciencedaily.com/releases/2011/11/111107033948.htm
BioMed Central. "Decrease in observed rate of TB at a time of economic recession." ScienceDaily. www.sciencedaily.com/releases/2011/11/111107033948.htm (accessed April 17, 2014).

Share This



More Science & Society News

Thursday, April 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Small Reactors Could Be Future of Nuclear Energy

Small Reactors Could Be Future of Nuclear Energy

AP (Apr. 17, 2014) After the Fukushima nuclear disaster, the industry fell under intense scrutiny. Now, small underground nuclear power plants are being considered as the possible future of the nuclear energy. (April 17) Video provided by AP
Powered by NewsLook.com
Heartbleed Hack Leads To Arrest

Heartbleed Hack Leads To Arrest

Newsy (Apr. 17, 2014) A 19-year-old computer science student has been arrested in relation to a data breach of 900 social insurance numbers from Canada's revenue agency. Video provided by Newsy
Powered by NewsLook.com
Yahoo's Ousted COO Gets $58M Severance Package

Yahoo's Ousted COO Gets $58M Severance Package

Newsy (Apr. 17, 2014) According to SEC filings, Yahoo gave ousted COO Henrique de Castro a $58 million severance package. Video provided by Newsy
Powered by NewsLook.com
Are School Dress Codes Too Strict?

Are School Dress Codes Too Strict?

AP (Apr. 16, 2014) Pushing the limits on style and self-expression is a rite of passage for teens and even younger kids. How far should schools go with their dress codes? The courts have sided with schools in an era when school safety is paramount. (April 16) 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