If you catch the flu, you may not be able to tell whether you have 2009 H1N1 or the seasonal variety, since they both make you sick with the same symptoms, including:
Runny or stuffy nose
Most effective in the first 48 hours of illness, the drug works against symptoms of the new H1N1, but seasonal flu is resistant to it
Not for young children but effective against both seasonal and 2009 H1N1 flu
When the shot becomes available, around mid-October, the CDC recommends that the following people be first in line:
Those in households with babies 6 months old or younger.
Everyone from 6 months to 24 years old.
People ages 25 to 64 with conditions like asthma.