Since there are several companies making the vaccine, what about any perceived differences in side effects, efficacy, pricing, ability to give/get along with the seasonal flu vaccine, etc.?
A. All of the vaccines that are licensed will have met the same standards of safety and efficacy. The most common side effect from an influenza vaccine is soreness or redness at the injection site usually due to the needle itself. The injectable 2009 H1N1 influenza vaccine can be given at the same time as regular seasonal influenza vaccine although we recommend getting the seasonal influenza vaccine as soon as possible, and then the 2009 H1N1 influenza vaccine when it becomes available. The seasonal influenza vaccine and the H1N1 influenza vaccine can be given at the same time, or at any time in any sequence with one exception: if using the live nasal spray vaccine for both the seasonal influenza and H1N1, they should be given four weeks apart to ensure the best protection from both vaccines. All of the H1N1 influenza vaccine is being purchased by the federal government. The vaccine itself is free to the public although your doctor may charge your insurance for a visit and/or administr
