I was looking if GSK had any update on their vaccine development, didn't find anything. However, I did find this (www.gsk.com/infocus/influenza-A-H1N1.htm):
Important Safety Information on Relenza
Some patients have had bronchospasm (wheezing) or serious breathing
problems when they used Relenza. Many but not all of these patients had
previous asthma or chronic obstructive pulmonary disease. Relenza has not
been shown to shorten the duration of influenza in people with these diseases. Because of the risk of side effects and because it has not been shown to help them, Relenza is not recommended for people with chronic respiratory disease such as asthma or chronic obstructive pulmonary disease.
If you develop worsening respiratory symptoms such as wheezing or shortness
of breath, stop using Relenza and contact your healthcare provider right away.
If you have chronic respiratory disease such as asthma and chronic obstructive pulmonary disease and your healthcare provider has prescribed Relenza, you should have a fast-acting, inhaled bronchodilator available for your use. If you
are scheduled to use an inhaled bronchodilator at the same time as Relenza,
use the inhaled bronchodilator before using Relenza.
Other kinds of infections can appear like influenza or occur along with influenza, and need different kinds of treatment. Contact your healthcare provider if you feel worse or develop new symptoms during or after treatment, or if your influenza symptoms do not start to get better.
In studies, the most common side effects with Relenza have been headaches; diarrhea; nausea; vomiting; nasal irritation; bronchitis; cough; sinusitis; ear,
nose, and throat infections; and dizziness. Other side effects that have been reported, but were not as common, include rashes and allergic reactions, some
of which were severe.
This list of side effects is not complete. Your healthcare provider or pharmacist can discuss with you a more complete list of possible side effects with Relenza. Talk to your healthcare provider promptly about any side effects you have.