World experts debate case for new bird flu vaccine

By Ben Hirschler and Kate Kelland LONDON (Reuters) – Experts from around the world are in daily talks about the threat posed by a deadly new strain of bird flu in China, including discussions on if and when to start making a vaccine. Any decision to mass-produce vaccines against H7N9 flu will not be taken lightly, since it will mean sacrificing production of seasonal shots. And scientists warn it will take months to get any finished bird flu vaccine to the market. But the groundwork is being laid. …