We encourage you to republish this article online and in print, it’s free under our creative commons attribution license, but please follow some simple guidelines:
  1. You have to credit our authors.
  2. You have to credit SciDev.Net — where possible include our logo with a link back to the original article.
  3. You can simply run the first few lines of the article and then add: “Read the full article on SciDev.Net” containing a link back to the original article.
  4. If you want to also take images published in this story you will need to confirm with the original source if you're licensed to use them.
  5. The easiest way to get the article on your site is to embed the code below.
For more information view our media page and republishing guidelines.

The full article is available here as HTML.

Press Ctrl-C to copy

Genetic analyses of samples from patients recently infected with the H5N1 bird flu virus suggest that new strains are emerging in the north of Vietnam.

The report, posted on the World Health Organization (WHO) website last week, says the data are limited and that more studies are needed, but cautions against complacency in the face of the growing pandemic threat (see Time to prepare for bird flu pandemic 'running out').

At a WHO meeting in the Philippines in early May, scientists also concluded that the transmission of the virus from person to person could be more common than previously thought.

The data — from the Centers for Disease Control and Prevention in Atlanta, United States, and Japan's National Institute of Infectious Diseases — could signify changes in the virus because clusters of infection are larger and more numerous than seen recently, and in some cases exposure to poultry could not be traced.

Meanwhile, cases of bird flu infection in people, pigs and poultry continue to be reported in China, Indonesia and Vietnam.

Link to full Science news story

Related topics