In respect of the vaccine, I might have been talking about the question of severe illness as opposed to reactions to the vaccine. As for allergic reactions, we see this with all medications and all vaccines. Fortunately, it tends to appear in less than one in 100,000 doses. Some people know they have an allergy to thimerosal or to one of the constituents of the vaccine. But since we're doing a mass immunization campaign, immunizing people who normally don't get a flu vaccine, there will be a percentage who may be allergic to what's in the vaccine.
The numbers are similar to what we see in seasonal flu, for which people are immunized regularly. But you won't know until it happens. That's why it's important to stay behind for 15 minutes. If you have symptoms, make sure you tell the nurse, because prompt treatment will deal with it. Clearly, if an elderly person has a severe allergic reaction, it's more difficult because of their physical condition, but generally they're all managed well.