Decrease in observed rate of TB at a time of economic recession
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.
Provided by BioMed Central
- WHO warns of drug-resistant TB Sep 06, 2006 | not rated yet | 0
- High rates of drug-resistant TB among UK prisoners Mar 16, 2010 | not rated yet | 0
- US misses goal to wipe out TB by 2010 Mar 24, 2011 | not rated yet | 0
- Drug-resistant tuberculosis rife in China Dec 11, 2008 | not rated yet | 0
- Cases of extensively drug-resistant TB declining each year in the US, but new cases still Nov 11, 2008 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Classical and Quantum Mechanics via Lie algebras
Apr 15, 2011 I'd like to open a discussion thread for version 2 of the draft of my book ''Classical and Quantum Mechanics via Lie algebras'', available online at http://lanl.arxiv.org/abs/0810.1019 , and for the...
- More from Physics Forums - Independent Research
More news stories
(HealthDay)—Few randomized clinical trials have been done to assess clinical prediction rules for patients with lower back pain, and the trials that have been done are of low quality and do not provide ...
Diseases, Conditions, Syndromes 18 hours ago | not rated yet | 0 |
A new, highly sensitive blood test that quickly detects even the lowest levels of malaria parasites in the body could make a dramatic difference in efforts to tackle the disease in the UK and across the world, according to ...
Diseases, Conditions, Syndromes 23 hours ago | not rated yet | 0
(AP)—The World Health Organization says a yellow fever booster vaccination given 10 years after the initial shot isn't necessary.
Diseases, Conditions, Syndromes 23 hours ago | not rated yet | 0
(AP)—Twenty-three youths have died in the past nine days at initiation ceremonies that include circumcisions and survival tests, South African police said Friday.
Diseases, Conditions, Syndromes 23 hours ago | 5 / 5 (1) | 3
The United States government public health agency, the CDC, pledges "To base all public health decisions on the highest quality scientific data, openly and objectively derived." But Peter Doshi, a postdoctoral fellow at Johns ...
Diseases, Conditions, Syndromes May 16, 2013 | not rated yet | 0
Big names in medicine are set to give an upbeat assessment of the war on AIDS on Tuesday, 30 years after French researchers identified the virus that causes the disease.
7 hours ago | 5 / 5 (1) | 0
For combat veterans suffering from post-traumatic stress disorder, 'fear circuitry' in the brain never rests
Chronic trauma can inflict lasting damage to brain regions associated with fear and anxiety. Previous imaging studies of people with post-traumatic stress disorder, or PTSD, have shown that these brain regions can over-or ...
8 hours ago | not rated yet | 0 |
(Medical Xpress)—What if the quality of your work depends more on your focus on the piano keys or canvas or laptop than your musical or painting or computing skills? If target users can be convinced, they ...
19 hours ago | 3.7 / 5 (3) | 0 |
The neural machinery underlying our olfactory sense continues to be an enigma for neuroscience. A recent review in Neuron seeks to expand traditional ideas about how neurons in the olfactory bulb might encode information about ...
19 hours ago | not rated yet | 0 |
In 2008 researchers from the University of Southern Denmark showed that the drug thioridazine, which has previously been used to treat schizophrenia, is also a powerful weapon against antibiotic-resistant bacteria such as ...
16 hours ago | 3.7 / 5 (3) | 0 |
Treatment for alcohol use disorders works best if the patient actively understands and incorporates the interventions provided in the clinic. Multiple factors can influence both the type and degree of neurocognitive abnormalities ...
17 hours ago | not rated yet | 0 |