A majority of Americans want "immediate action" from Congress or the federal government to fight the spreading Zika virus, according to a new poll.

The poll from Morning Consult released Wednesday also found that 77 percent have seen or heard something about the virus. The poll was conducted a few days after the first U.S. cases of Zika infections via mosquito bites emerged.

Florida health officials have found 15 cases of Zika infection through mosquitoes, with all of them stemming from the Wynwood neighborhood in Miami.

About 61 percent of those polled think Zika is an issue that requires "immediate action" from Congress and federal agencies, compared with 20 percent who said no and 19 percent who had no opinion or didn't know, according to a report on the poll.

While Americans want action, only 32 percent believe the federal government is the best equipped to fight Zika, Morning Consult said. Another 21 percent said states and 12 percent local governments were best equipped, the poll found.

Trust in the federal government's response varies along partisan lines. About 39 percent of Democrats think the government is up to the task, while only 24 percent of Republicans and 31 percent of independents think so.

Morning Consult said the poll was taken on Aug. 1-2 among 2,001 registered voters and the margin of error was plus or minus 2 percentage points. The confirmation of the first mosquito-borne Zika case was July 29.

Congress adjourned last month without approving additional funding for Zika.

Democrats, who stalled a $1.1 billion funding package in the Senate, called on Congress to return to Washington to pass the funding. Republicans have answered that they will do so only if Democrats lift objections to the package, which has passed the House.