article_snippet.sent: Virus caused the deaths of nearly 400 people and hundreds of millions of poultry after Virus spread from Asia into Europe and Africa in 2005-2006.
article_snippet.sent: Since then, India has regularly reported cases of highly pathogenic avian influenza in wild and domestic birds.
article_snippet.sent: Experts point out that cross-infection to humans is still relatively rare and usually occurs where people have been in close contact with infected birds.
article_snippet.sent: But fears remain bird flu could combine with a human strain to produce a mutation that is more dangerous and difficult to control.
article_snippet.sent: In February, three people were tested for bird flu and 10,000 chickens slaughtered in Britain's first outbreak of the H7N7 strain in seven years.
article_snippet.sent: There have been several outbreaks of bird flu and 18 months ago bird flu was found in Italy.
article_snippet.sent: During an outbreak of bird flu, three poultry workers became infected with an outbreak of bird flu, developing conjunctivitis.
highlights_snippet.sent: Follows outbreak of H5N1 virus which can be deadly in humans .
  
highlights_snippet.sent: Virus has caused deaths of nearly 400 people worldwide since 2006 .