A new strain of the bird flu virus has arisen in South Korea. The H5N1 bird flu virus can also affect humans and South Korea is taking safety measures.

Jan 2, 2011 - Tamara Laschinsky

With the number of cases of the bird flu increasing each year, the facts to know about this possible pandemic influenza and precautions to take.

Dec 30, 2007 - Gail Oliver

Influenza spreads from birds to people. When it passes from human to human efficiently, it can cause a pandemic. Domestic birds are the ones to watch with the H5N1 strain

Jul 18, 2006 - Rosemary Drisdelle

Avian influenza A virus has the potential to evolve into a strain that can effectively be spread person-to-person.

Oct 23, 2006 - Judy Arbique

Why is it called H1N1? How is it different from H5N1? Here is an explanation of flu virus names and types.

Aug 19, 2011 - Sally Anne Lewis

Swine flu, H1N1, bird flu, H5N1, type A influenza - these are five terms used to describe the various strains of a single virus, but what is the difference?

Jun 11, 2009 - Alicia Mae Prater

Influenza viruses have an amazing ability to infect multiple species of animals, mutate genes and intermix RNA to become new strains and deadly variants.

Apr 25, 2009 - Donald Reinhardt

The fear of swine influenza pandemic has spread worldwide. Why is H1N1 called swine flu? Is the new type of influenza threatening lives? Is there a cure? - Read on.

May 24, 2009 - Alla Kondrat

Why do they make such a fuss about bird flu? Is it that dangerous? Actually, yes, it is. Here's why.

Oct 14, 2011 - Sally Anne Lewis

Influenza A viruses are made of RNA. Human, swine and avian forms of influenza A virus strains can reassort to form novel viruses to which humans do not have immunity.

Jul 24, 2009 - Vandana Bhide

The H5N1 virus, popularly called the "bird flu" virus, is a subtype of the Influenza A genus of the Orthomyxoviridae family.

Nov 4, 2006 - Christine Buske

With the reopening of schools and the resurgence of 2009 H1N1 ("swine flu"), health experts worry about an unusual pattern of severity.

Sep 13, 2009 - Stephen Allen Christensen

The H1N1 strain has shown increased resistance to Tamiflu in Europe and North America. This year's vaccine also does not protect against the emerging type A strain.

Feb 13, 2008 - Alicia Mae Prater

Dr. Robert Webster spoke with reporters at the Options for the Control of Influenza conference in Hong Kong Sept. 5, 2010 and said we must remain vigilant.

Sep 6, 2010 - Marcus Hondro

The recent outbreak of Type A H1N1 influenza has many people asking questions about the biology of influenza virus. Such as what do the letters H and N refer to?

May 15, 2009 - Kenneth Rosen

It's still summer in the northern hemisphere but the flu season is not far away, and you need to be ready for it.

Aug 18, 2011 - Sally Anne Lewis

Whenever a flu virus affects humans as SARS, H5N1 bird flu and swine flu did, the Spanish flu outbreak is cited. But in 1918 more than the influenza virus was involved.

Jul 24, 2009 - Dawn M. Smith

The bird flu issue has subsided somewhat in recent years; that is until two independent groups of researchers created transmissible mutant forms.

Mar 3, 2012 - Ken Chan

New antibody treatments and vaccines to combat influenza may soon be possible and recurrent yearly flu immunizations may become a thing of the past.

Mar 2, 2009 - Donald Reinhardt