Navigation Links
Less-lethal Strains of Bird Flu Virus may Become the Biggest Killer

HEALTH Experts have called for closer study of less-lethal strains of the H5N1 bird flu virus because they might be more //likely candidates to spark an influenza pandemic.

Scientists have identified at least four major variants, or genotypes, of the deadly H5N1 virus since it made its first-known jump to humans in Hong Kong in 1997.

Topping the list is the Z-genotype, which has been found in northern China, Indonesia, Southeast Asia, parts of Africa, Europe and the Middle East, and killed more than half the people it was known to have infected.

Less well known is the V-genotype that turned up in South Korea and Japan in late 2003. This variant infected at least nine South Koreans who took part in poultry culling in late 2003 and early 2004 to stop outbreaks in the country. None of them suffered any serious symptoms, and all recovered.

Another poultry worker was infected after the disease showed up in poultry farms in South Korea in November but he, too, did not become seriously ill.

Scientists warned against dismissing these less virulent H5N1 strains since they bear more likeness to viruses that have killed millions of people in the past.

Julian Tang, microbiology associate professor at the Chinese University of Hong Kong, said what made past pandemics deadly was not high mortality rates but the efficiency with which they spread among people. If massive populations were stuck down, even a low mortality rate would culminate in devastating death tolls.

"All previous influenza pandemics have shown a relatively low mortality (of less than three percent, including the 1918-19 pandemic).

The total number of people who died is large because a lot more were infected, but the majority - or over 97 percent - survived," Tang told Reuters.

The Spanish flu of 1918-19 killed about 50 million people worldwide, but the real number will never be known.

"This make s sense from an evolutionary viewpoint. If a virus is so lethal that it kills 50 percent of its hosts, then it will not transmit very far to infect many other people, and it will die out relatively quickly. It is less likely to become a worldwide pandemic," Tang said.

The H5N1 virus has flared up in recent weeks, spreading through poultry flocks in Japan, Vietnam and Thailand, killing six people in Indonesia and claiming its first human life in Nigeria.

Although it remains a bird disease, it is known to have infected 270 people since late 2003, killing 164 of them.

Experts fear the virus could kill millions once it learns how to pass efficiently among people.

Source-Bio-Bio Technology
'"/>




Related medicine news :

1. New Tools To Identify Flu Strains
2. Bird Flu Strains Detected In Wild Birds Of Mongolia
3. Whirlpool Bath Tubs Contain Potentially Lethal Bacterial Strains
4. Newly Identified Strains Of Chlamydia Trachomatis – A Gateway To New Disease
5. Misuse Of Anti-Microbial Drugs Have Given Rise To Multidrug-resistant TB Strains
6. A New Test to Detect Drug-resistant HIV Strains
7. Peptide Found in Human Blood Inhibits 60 Strains of HIV, Study Says
8. Pneumonia Strains Not Covered by Vaccines on the Rise
9. Virus Level could Predict Cervical Cancer Risk
10. Ebola Virus - Outbreak Claims More Lives In Uganda.
11. Experimental treatment for Ebola Virus Shows promising results in mice
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:9/20/2017)... ... September 20, 2017 , ... “Monique”: is the story of Monique, ... the creation of published author, Colleen Crispi, has owned four beauty salons and written ... involved in real estate and cooking. , “The doctor’s office was only three ...
(Date:9/19/2017)... ... 2017 , ... Only a few physicians were selected to receive the prestigious ... Clevens, MD, FACS . The founder and medical director of Clevens Face and ... at Yale, Harvard and the University of Michigan. He has served patients throughout Central ...
(Date:9/19/2017)... ... September 19, 2017 , ... ... St. Vincent’s Infusion Services called, “PAPA Healthcare helps fill gaps, provide essential insights, ... enhanced service delivery and operations by leveraging PAPA Healthcare’s post-acute productivity and analytics ...
(Date:9/19/2017)... MD (PRWEB) , ... September 19, 2017 , ... ... Environmental Compliance and Safety for the President’s Malaria Initiative (PMI) Africa Indoor ... USAID’s Innovation to Action Award. , The Innovation to Action Award, a ...
(Date:9/19/2017)... ... 19, 2017 , ... The Lymphoma Research Foundation (LRF) – ... serving the lymphoma community through a comprehensive series of education programs, outreach initiatives ... national Swirl: A Wine Tasting Event series on Thursday, October 26, 2017. Hosted ...
Breaking Medicine News(10 mins):
(Date:9/6/2017)... 2017   PDI , a leader in infection ... an educational session focused on the role of chlorhexidine ... at the 2017 Annual Scientific Meeting of the Association ... at the Phoenix Convention Center ... 16-19, will also feature PDI,s Prevantics® Device Swab ...
(Date:9/5/2017)... 5, 2017  Xyntek Inc. has announced another milestone in their continued growth ... to meet the growing demands of customer engagements regionally.  ... Xyntek's new Midwest office is located at 318 West Adams Street, Suite ... Xyntek's ... ...
(Date:9/1/2017)... Sept. 1, 2017 Michael Penna , ... , highlights opportunities for growth in his response to ... Marlin Equity is seeking a buyer for eMDs. Penna,s ... 22-year-old healthcare solutions Value Added Reseller and national leader ... "As the healthcare market continues to ...
Breaking Medicine Technology: