Navigation Links
Demystifying a Common, Persistent Virus
Date:4/1/2010

Researchers think they know how cytomegalovirus continues to re-infect people

THURSDAY, April 1 (HealthDay News) -- New research sheds light on how a virus known as cytomegalovirus (CMV), which infects up to 80 percent of the U.S. population before age 40, re-infects people again and again even though their immune systems strongly respond to it.

The infection doesn't always make people ill, but certain people, such as newborns and others with weakened immune systems, can develop serious symptoms and disabilities.

"CMV is one of a few virus types that can efficiently re-infect individuals who are already persistently infected by this virus," Dr. Louis Picker, an associate director of Oregon Health & Science University's Vaccine and Gene Therapy Institute, said in a news release.

"When most viruses infect a host, the immune system remembers the disease and protects against re-infection. This is the case with smallpox, seasonal strains of flu and several other viruses," Picker said. "This immune system reaction is also the reason why vaccines made with weakened or dead viruses work against these pathogens. In the case of CMV, the body's immune system is continuously stimulated by ongoing, low-level persistent infection, but yet CMV is still able to re-infect. This research explains how CMV is able to overcome this immune response so that re-infection occurs."

Picker and colleagues studied monkeys infected with CMV and found that the disease is able to overcome a "crucial immune barrier," Klaus Frueh, a senior scientist at the institute, said in the university news release.

The researchers, who report their findings online April 1 in the journal Science, say the study shows that it will be difficult to create a vaccine to combat the virus. On the other hand, modified bits of the virus could serve to carry vaccines into the body, and the research may help in the development of other vaccines, the authors said.

More information

The U.S. National Library of Medicine has more on cytomegalovirus infections.



-- Randy Dotinga



SOURCE: Oregon Health & Science University, news release, April 1, 2010


'/>"/>
Copyright©2010 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. Complications common, often linked to trauma in children receiving cochlear implants
2. H1N1 Virus Yields Up More Secrets
3. FDA Asks Docs to Suspend Using Glaxo Rotavirus Vaccine
4. GlaxoSmithKline Statement on New Information Relating to Manufacture of Rotarix (Rotavirus Vaccine)
5. Reovirus may be a novel approach to prostate cancer treatment
6. Infectious Virus Hides In Human Chromosomes During Latency And Can Be Passed From Parents To Their Children
7. Researchers find further evidence linking Epstein-Barr virus and risk of multiple sclerosis
8. New Study: Improved Immune System with Gene-Eden, a Natural Antiviral Supplement that Targets Chronic Viruses
9. Virus Unlikely to Cause Chronic Fatigue Syndrome
10. Chronic Fatigue Syndrome-Virus Link Questioned
11. Researchers find broad spectrum antiviral that fights multitude of viruses
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The American Board of ... its next President and Chief Executive Officer, succeeding Dr. James C. Puffer upon his ... July 1, 2018 until Dr. Puffer’s retirement at the end of 2018. Upon assuming ...
(Date:10/13/2017)... (PRWEB) , ... October 13, 2017 , ... Apple ... care services, staged a mock evacuation of the facility as part of a disaster ... Fire Department, Echo Hose EMS and Shelton City Emergency Manager, as well as the ...
(Date:10/13/2017)... ... ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, has released ... understood books in the Holy Scriptures, Revelation. The Book of Revelation paints a picture ... Many have tossed it off as mere rubbish, but Yisrayl Hawkins says that is ...
(Date:10/12/2017)... ... October 12, 2017 , ... First Healthcare Compliance (FHC), an ... showcase a range of technology and learning solutions at the 68th Annual American ... to be held October 14–18, 2017 at the Mandalay Bay Resort in Las ...
(Date:10/12/2017)... ... 12, 2017 , ... The American College of Medical Informatics (ACMI) will present ... the Opening Session of AMIA’s Annual Symposium in Washington, D.C. AMIA’s Annual Symposium ... Collen, a pioneer in the field of medical informatics, this prestigious award is presented ...
Breaking Medicine News(10 mins):
(Date:10/12/2017)... DIEGO , Oct. 12, 2017 AVACEN ... recognized the company with their  2017 New Product Innovation Award ... based on extensive primary and secondary medical device market research ... Medical, through its first-to-market OTC, drug-free pain relief product, the ... unique approach to treating fibromyalgia widespread pain. ...
(Date:10/11/2017)... PARK, Calif. , Oct. 11, 2017  BioPharmX ... national scientific team that developed an innovative way to ... quantity of the delivery of new drugs. ... 2017 Fall Clinical Dermatology Conference will show how researchers ... General Hospital, Harvard Medical School used a suite of ...
(Date:10/11/2017)... , Oct. 11, 2017  Hill-Rom Holdings, Inc. ("Hill-Rom") ... Surgical facility in Las Piedras, Puerto Rico ... and blades. ... the facility sustained minor structural damage, temporary loss of ... Repairs have been completed, manufacturing operations have resumed, and ...
Breaking Medicine Technology: