Creating a free account will enable you to subscribe to our daily and weekly email newsletters, as well as customize your reading experience to show only the categories most relevant to you.
Signing up only take a few minutes, so why not give it a try and see what you've been missing out on.
The rise of tuberculosis (TB) in Zimbabwe during the socio-economic crisis of 2008-9 has been linked to widespread food shortage, according to a new study led by Canadian researchers from the University of Toronto Dalla Lana School of Public Health published in PLOS ONE.
"This was the first study to detect the recent TB outbreak in Zimbabwe, and the first anywhere to suggest an association between rising TB incidence and national economic decline in the absence of armed conflict," said Michael Silverman, assistant professor at the Dalla Lana School of Public Health and senior author of the study. Although the same phenomenon may occur with other infectious diseases, the study focused on TB - one of the largest causes of morbidity and mortality in Zimbabwe, especially among people living with HIV.
"Zimbabwe may have been predisposed to this TB outbreak due to the presence of a large HIV-positive population who were particularly vulnerable to the effects of food shortages which led to malnutrition and further damage to already weakened immune systems," said Silverman.
Many developing countries have large HIV positive populations and thus socioeconomic instability could lead to a similar problem elsewhere. "This finding emphasizes the importance of adequate food availability in controlling TB incidence, particularly in areas with high HIV prevalence," said Silverman.
The study also demonstrated that TB incidence appears to be seasonal, with a larger number of cases when food is scarce in the dry season and lower numbers of cases post-harvest when food is more plentiful. Research data also suggests that TB incidence fell back to pre-crisis levels when the economy of the country and food security improved after 2009.
"Political instability can lead to economic instability, and this can lead to a health crisis with the most vulnerable people in society the most likely to be harmed," said Silverman. "It is important for political leaders to be aware that in addition to economic costs, political conflict can potentially have very serious health implications for vulnerable communities."
This study was co-authored by Stephen Burke of the University of Ottawa and Eliot Lass of the University of Toronto; Paul Thistle of U of T and the University of Zimbabwe; Arif Jetha, Shelly Bolotin and Andrew Simor of the Dalla Lana School of Public Health; Lovemore Katumbe of the Howard Hospital in Zimbabwe; Dan Schwarz of Brigham and Women's Hospital and Children's Hospital of Boston; and Jack Barker of the Murabinda Mission Hospital in Zimbabwe and King's College Hospital in the UK.
Article adapted by Medical News Today from original press release. Click 'references' tab above for source.
Visit our Tuberculosis category page for the latest news on this subject.
Please use one of the following formats to cite this article in your essay, paper or report:
University of Toronto. "Increased incidence of tuberculosis in Zimbabwe likely due to food insecurity." Medical News Today. MediLexicon, Intl., 8 Feb. 2014. Web.
12 Mar. 2014. <http://www.medicalnewstoday.com/releases/272308>
University of Toronto. (2014, February 8). "Increased incidence of tuberculosis in Zimbabwe likely due to food insecurity." Medical News Today. Retrieved from
Please note: If no author information is provided, the source is cited instead.
If you write about specific medications, operations, or procedures please do not name healthcare professionals by name.
For any corrections of factual information, or to contact our editorial team, please use our feedback form. Please send any medical news or health news press releases to:
Note: Any medical information published on this website is not intended as a substitute for informed medical advice and you should not take any action before consulting with a health care professional. For more information, please read our terms and conditions.
This page was printed from: http://www.medicalnewstoday.com/releases/272308.php
Visit www.medicalnewstoday.com for medical news and health news headlines posted throughout the day, every day.
© 2004-2014 All rights reserved. MNT (logo) is the registered trade mark of MediLexicon International Limited.