There is no treatment for measles and in very rare cases it can be fatal.

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The oral polio vaccine can - in very rare cases - trigger polio.

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In very rare cases, this ductal dysplasia can progress to pancreatic cancer.

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Louise Sheppy says the business takes particular pride in its wide range of traditional, and in some cases, very rare, old cider apple varieties.

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These can range from fine hams to, in some cases, although very rare, caviar.

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Experts reassure that complications are very rare and that in most cases the benefits for the patient taking the drug will outweigh the risks.

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We have presented our cases in court and, with very rare exception, we have won.

CNN: Transcript: Judiciary Committee impeachment hearing

To be sure, it is only in rare cases, when tax rates get very high, that researchers find that high tax rates lose revenue.

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In India, executions are carried out only for very rare cases.

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Albino individuals of adult frogs, toads and newts are considered to be very rare and cases of multiple albinistic individuals in a breeding population are even rarer.

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There are a few cases, very rare, very special, in the medical literature in which the cancer from one person took root and grew in another person.

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