Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

West Nile Virus cases analyzed for prevalence and symptoms

01.04.2003


Researchers from Chicago have identified focal neurological deficits as a major group of presenting symptoms among patients with West Nile Virus infection, which became epidemic in the United States in 2002. Focal neurological deficits included visual loss, muscle weakness, paralysis of one half of the body, abnormally slow movement, tremor with rigidity, numbness or tingling and unstable gait. Findings of their study are being presented at the American Academy of Neurology Annual Meeting in Honolulu, March 29-April 5, 2003.

West Nile Fever, generally transmitted to humans through the bite of an infected mosquito, is usually a relatively mild infection. It is estimated that about 20 percent of those infected will develop West Nile Fever, characterized by mild, flu-like symptoms, a skin rash on the trunk of the body and swollen lymph nodes. West Nile fever typically lasts only a few days and does not appear to cause any long-term health effects.

The more severe form of the disease is the West Nile encephalitis or meningitis, characterized by high fevers, headache, stiff neck, disorientation, seizures, coma and focal neurological deficits. The death rate among West Nile virus infection cases from the summer of 2002 was 5 to 6 percent according to the latest Center for Disease Control reports.



Illinois experienced a higher incidence of West Nile Virus infection cases than any other state: 836, or 20 percent of all U.S. cases reported by January 2003. To aid in diagnosis and treatment, researchers from three Chicago area medical centers were interested to know more about presenting symptoms. Detailed analysis of 28 cases from three hospitals between the months of August through October of 2002, revealed that more than half (54 percent) of their patients exhibited a neurological symptom that mimicked other neurological diseases such as stroke, Parkinson’s, Bells’ palsy, polio and Guillain-Barre syndrome. The remainder of their cases presented with a meningitis or encephalitis without any focal symptoms. "As West Nile virus cases continue to be seen across the U.S., we hope neurologists and patients benefit from the findings of our study by being aware of the varied presentations of the West Nile virus," concluded study author Nidhi K. Watson, MD of Rush Medical Center, Chicago, Ill.


The American Academy of Neurology, an association of more than 18,000 neurologists and neuroscience professionals, is dedicated to improving patient care through education and research. For more information about the American Academy of Neurology, visit its online press room at http://www.aan.com/press/index.cfm.

For more information contact:
Kathy Stone, 651-695-2763, kstone@aan.com
March 29-April 5, 808-792-6630
Marilee Reu, 651-695-2789, mreu@aan.com

Marilee Reu | EurekAlert!
Further information:
http://www.aan.com/

More articles from Health and Medicine:

nachricht Diabetes mellitus: A risk factor for early colorectal cancer
27.05.2020 | Nationales Centrum für Tumorerkrankungen (NCT) Heidelberg

nachricht Ultra-thin fibres designed to protect nerves after brain surgery
27.05.2020 | Martin-Luther-Universität Halle-Wittenberg

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: K-State study reveals asymmetry in spin directions of galaxies

Research also suggests the early universe could have been spinning

An analysis of more than 200,000 spiral galaxies has revealed unexpected links between spin directions of galaxies, and the structure formed by these links...

Im Focus: New measurement exacerbates old problem

Two prominent X-ray emission lines of highly charged iron have puzzled astrophysicists for decades: their measured and calculated brightness ratios always disagree. This hinders good determinations of plasma temperatures and densities. New, careful high-precision measurements, together with top-level calculations now exclude all hitherto proposed explanations for this discrepancy, and thus deepen the problem.

Hot astrophysical plasmas fill the intergalactic space, and brightly shine in stellar coronae, active galactic nuclei, and supernova remnants. They contain...

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

 
Latest News

An MRI technique has been developed to improve the detection of tumors

03.06.2020 | Medical Engineering

K-State study reveals asymmetry in spin directions of galaxies

03.06.2020 | Physics and Astronomy

The cascade to criticality

03.06.2020 | Physics and Astronomy

VideoLinks
Science & Research
Overview of more VideoLinks >>>