The safety data from the first six weeks of H1N1 vaccinations has been reassuringly good, with no early `red flags' such as we saw back in 1976. Most of the side effects have been mild, and the number of severe side effects has been about what we would expect from the seasonal vaccine.
Obviously public health officials are starting to heave a sigh of relief. Not that they expected a different outcome, but anytime you release a vaccine there is always the potential for seeing increased side effects.
While ongoing monitoring will be needed, and problems could still present in the weeks ahead, right now the news is very encouraging.