Featured Research

from universities, journals, and other organizations

Urban Slum Conditions Are A Source Of Leptospirosis

Date:
April 25, 2008
Source:
Public Library of Science
Summary:
A study conducted in an urban slum setting in Salvador, Brazil has found that open sewers, accumulations of refuse, and inadequate floodwater drainage are acting as sources for transmission of the disease leptospirosis.

A study conducted in an urban slum setting in Salvador, Brazil has found that open sewers, accumulations of refuse, and inadequate floodwater drainage are acting as sources for transmission of the disease leptospirosis.

Related Articles


Leptospirosis, caused by the bacterium Leptospira, is transmitted during direct contact with animal reservoirs or water and soil contaminated with animals' urine. The disease can range in severity from a mild flu-like illness to life-threatening forms of the diseases, such as Weil's disease (which kills over 1 in 10) and severe pulmonary hemorrhage syndrome (which kills over 1 in 2). The huge growth of urban slum communities worldwide has produced conditions for rodent-borne transmission.

In the new study, Dr Albert Ko (Centro de Pesquisas Gonçalo Moniz, Fundação Oswaldo Cruz, Ministério da Saúde, Salvador, Brazil) and colleagues tested 3,171 slum residents for Leptospira antibodies, which are a marker of past infection with the bacterium. The researchers then used Geographical Information System (GIS) and modeling approaches to identify deficiencies in the sanitation infrastructure of the slum that were linked to Leptospira infection. They also investigated whether there was a link between poverty and Leptospira infection.

Dr Ko and colleagues found that the households of those with Leptospira antibodies clustered in squatter areas at the bottom of valleys. The risk of acquiring Leptospira antibodies was higher in people living in flood-risk regions with open sewers, or near to accumulated refuse, and those who saw rats or lived in the presence of chickens. In addition, being poor was a risk factor for infection--an increase of US$1 per day in per capita household income was associated with an 11% decrease in infection risk.

"These findings," say the authors, "indicate that effective prevention of leptospirosis will need to address the social factors that produce unequal health outcomes among slum residents, in addition to improving sanitation."

Journal reference: Reis RB, Ribeiro GS, Felzemburgh RDM, Santana FS, Mohr S, et al. (2008) Impact of Environment and Social Gradient on Leptospira Infection in Urban Slums. PLoS Negl Trop Dis 2(4): e228. doi:10.1371/journal.pntd.0000228


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Cite This Page:

Public Library of Science. "Urban Slum Conditions Are A Source Of Leptospirosis." ScienceDaily. ScienceDaily, 25 April 2008. <www.sciencedaily.com/releases/2008/04/080422203308.htm>.
Public Library of Science. (2008, April 25). Urban Slum Conditions Are A Source Of Leptospirosis. ScienceDaily. Retrieved November 27, 2014 from www.sciencedaily.com/releases/2008/04/080422203308.htm
Public Library of Science. "Urban Slum Conditions Are A Source Of Leptospirosis." ScienceDaily. www.sciencedaily.com/releases/2008/04/080422203308.htm (accessed November 27, 2014).

Share This


More From ScienceDaily



More Health & Medicine News

Thursday, November 27, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Pet Dogs to Be Used in Anti-Ageing Trial

Pet Dogs to Be Used in Anti-Ageing Trial

Reuters - Innovations Video Online (Nov. 26, 2014) — Researchers in the United States are preparing to discover whether a drug commonly used in human organ transplants can extend the lifespan and health quality of pet dogs. Video provided by Reuters
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) — Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com
From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

From Popcorn To Vending Snacks: FDA Ups Calorie Count Rules

Newsy (Nov. 25, 2014) — The US FDA is announcing new calorie rules on Tuesday that will require everywhere from theaters to vending machines to include calorie counts. Video provided by Newsy
Powered by NewsLook.com
Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Daily Serving Of Yogurt Could Reduce Risk Of Type 2 Diabetes

Newsy (Nov. 25, 2014) — Need another reason to eat yogurt every day? Researchers now say it could reduce a person's risk of developing type 2 diabetes. Video provided by Newsy
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