There is a rumor floating around pro-life groups that the H1N1 vaccine is developed from aborted fetal tissue. I decided to look into this myself, as I was unaware that any vaccine was developed from aborted fetuses.
What I found surprised me- a good number of vaccines, including those required by law of school age children in Oregon, come from fetal tissue.
The Vatican, though, long ago responded to this issue, with the result being that in most cases, it's more immoral to avoid vaccination than it is to use these vaccines. However, it is the responsibility of all to know where vaccines come from, and if possible, use an alternative vaccine.
The H1N1 vaccine is not developed with human fetal tissue however- it uses chicken eggs instead, which is part of the huge problem I blogged about previously.
As such, don't stop to not vaccinate for H1N1 for moral reasons. DO, however, educate yourself on this topic, and lobby for alternatives to become available (there are alternatives already available for everything except Rubella, Hepatitis-A, and Chickenpox; and the Japanese have developed alternatives for Rubella and Hep-A that are not available in the United States as of yet).