H5N1 bird flu in Antarctic wildlife showing how climate change shifts animal ranges and highlights urgent need for monitoring and early-warning systems.
Scientists are alarmed as southern elephant seals face sharp population declines, possibly due to disease and changing oceans linked to global warming.
The finding of the virus in a small farm makes the pig infection less of a concern than if it had been detected in a commercial pig farm, he said.
During a recent briefing on the H5N1 strain of bird flu, experts highlighted concerns regarding its potential to trigger a new pandemic. Scientists warned that the virus is approaching a critical threshold where it could spark a worldwide outbreak. Watch the video.
The source of avian influenza or H5N1 is mainly poultry animals. "Anyone in close contact with these animals is infected, but human-to-human infections have never been observed," Dr Guleria said.
China can control the outbreak of an avian flu strain newly contracted by humans, a senior Chinese health official said on Sunday, a day after China reported its eighteenth case of the H7N9 virus that has so far killed six people.
New research shows that the H5N1 virus can become contagious. But is the government prepared for a pandemic?