HOME >> BIOLOGY >> NEWS
New highways carry pathogens and social change in Ecuador

ANN ARBOR, Mich.---Logging roads have brought a higher incidence of diarrheal disease and new social problems among communities along the Ecuadorian coast, according to a new study by an international research team led by Joseph Eisenberg, assistant professor of epidemiology at the University of Michigan School of Public Health. The new roads connect Ecuadorian villages that previously used only rivers for transport. The study suggests the importance of considering human costs when assessing the environmental impacts of large development projects. With funding from the National Institutes of Allergy and Infectious Disease, the research team examined diarrheal infections and social networks in 21 villages being connected to a new road network built by the Ecuadorian government at the southern end of the Choc rainforest, near the Pacific Ocean and the border with Columbia.

The roads bring new people to the villages, and allow the villagers to travel more easily between villages, and also back-and-forth to larger cities. But bacteria, viruses and parasites hitch rides with the newly-mobile people, adding new strains of old bugs to the local environment and increasing infection rates, according to Eisenberg. "If you keep reintroducing strains of a given pathogen, you're increasing the endemic population of pathogens," he said.

The study looked in particular at E. coli bacteria, rotavirus and the protozoan parasite Giardia, finding different infection rates and modes of transmission for each, but the same overall trends: proximity to the road meant higher infection rates. Remote villages were found to have infection rates up to eight times lower than those close to the new road.

"The increased diversity and potency of the microbe population apparently offsets the improved health care that also comes with new roads," he said. "When you're thinking about a road, you have to also think about these impacts that will take years to unfo
'"/>

Contact: Karl Leif Bates
batesk@umich.edu
734-647-1842
University of Michigan
4-Dec-2006


Page: 1 2

Related biology news :

1. Surprising origin of cells internal highways
2. Ants show us how to make super-highways
3. Elephant highways of death
4. New model for autism suggests women carry the disorder and explains age as a risk factor
5. Nanoparticles carry chemotherapy drug deeper into solid tumors
6. Non-steroidal anti-inflammatory drug increases liver damage in mice carrying mutant human gene
7. Neural stem cells derived from human embryonic stem cells carry abnormal gene expression
8. Pregnant protein-coding genes carry RNA babies
9. Performing monkeys in Asia carry viruses that could jump species to humans
10. Dust storms may carry bacteria to Japan from China
11. Chickadees alarm calls carry information about size, threat of predators

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/26/2020)... ... August 25, 2020 , ... Mitotech S.A, ... with Essex Bio-Technology, a bio-pharmaceutical company specializing in Ophthalmology and Dermatology, announced ... SkQ1 ophthalmic solution in patients with moderate to severe Dry Eye Disease ...
(Date:8/23/2020)... ... August 21, 2020 , ... ... has been published and is now available on the company’s global website. Crystallography ... X-ray analysis community, presenting current news and crystallographic research. , The latest ...
(Date:8/21/2020)... ... August 19, 2020 , ... ... expo uniting life science, data science, informatics and IT leaders goes VIRTUAL and ... period of uncertainty and change, Bio-IT takes the leadership role of keeping our ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... August 11, 2020 , ... ... to expand the Facioscapulohumeral Muscular Dystrophy Clinical Trial Research Network (FSHD ... 2022. The network is a consortium of academic research centers in the United ...
(Date:8/3/2020)... PHILADELPHIA (PRWEB) , ... August 03, 2020 , ... ... data collection, today announced Jim Corrigan, President and CEO has been named one ... a broad cross-section of industry sectors, PharmaVoice 100 honorees are selected based on ...
(Date:7/31/2020)... , ... July 29, 2020 , ... ... solid-state radar transmitter systems that can be configured to drive Klystrons, TWTs, IOTs, ... that can drive one or two switches in a push-pull configuration; yielding fast ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the top radiation centers in 16 countries, has reached its 20th anniversary of ... now in routine use at top universities including University of Pennsylvania, University of ...
Breaking Biology Technology:
Cached News: