Poll: More than six in 10 won't get the swine-flu vaccine

As the H1N1 virus continues to spread nationwide, a majority of those surveyed — 52 percent — now say they are “a great deal” or “somewhat” worried that they or someone in their household will be infected with it, up from 39 percent of those polled in August. Concern is rising fastest among young adults, one of the groups most vulnerable to the virus. In August, just 26 percent of those ages 18 to 29 said they were concerned; now 47 percent are worried.

At the same time, however, many Americans are hesitant about being vaccinated or having their children inoculated. More than six in 10 say they will not get vaccinated, and only 52 percent of parents say they plan to have their children vaccinated, even though parents tend to be more worried about the flu.

The findings illustrate the dueling challenges the federal government faces in its unprecedented effort to protect Americans against the first influenza pandemic in more than four decades.