strains

Stocks slip on rethink of Fed plan, oil over $110

NEW YORK (Reuters) - Stocks fell on Wednesday as optimism receded about the Federal Reserve's latest initiative to ease credit market strains, while a jump in oil prices to a record above $110 a barrel raised fears of further strains on corporate profits.

STD shot may prevent more strains of virus

New data shows a vaccine against the virus that causes cervical cancer partially blocks infection by 10 strains of the virus on top of the four types the vaccine targets.

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