"He's spent so many years fighting B-level opponents, he's become a B-level champion, " said Haye.

BBC: Haye targets 'B-level' Klitschko

B-cells are a key component of the immune system, producing disease-fighting antibodies.

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Mr Barak is now fighting to prevent the disaffection spreading to another of his motley coalition partners, the Russian immigrant party, Yisrael B'Aliyah.

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