The risk to the general population is very low.

I think it's important to know that this particular measles patient was contagious from Aug. 16 through the 24th and is no longer contagious.

This is a major operation in a high-risk population.

Statistically then, the risk is approximately 1 in 1,000, which is substantially higher than in the normal population. We're also careful to say we do not know what the risk is for individuals with long-term use of the drug.

We have, after all, an ageing population, and dementia is generally a condition of ageing, in that the risk increases with age.

Recent information and further analysis leads our agency to conclude that the Southern Resident killer whale population is at risk of extinction, and should be listed as endangered. By giving it protection under the ESA, we have a better chance of keeping this population alive for future generations.