Business Update. I'm Chris Burns with the global business headlines on Thursday.Europe's drugs industry may be dominated by a new giant following the news that Germany's Merck is to buy a majority stake in Swiss biotech firm Serono. The surprise deal for the Bertarelli family's 64.5 per cent stake in Serono, together with a public offer for the rest of the shares, is valued at 13. The European markets xxxx That's Business Update - I'm Chris Burns in London.