MIAMI — Urging Congress to cut short its summer recess, Hillary Clinton called for emergency public health action Tuesday as she visited a Miami neighborhood dealing with the first U.S. outbreak of the Zika virus.

At a local health clinic, the Democratic presidential nominee said Republican congressional leaders should summon lawmakers back to Washington and immediately pass funding for the Zika response.

Clinton said she was "very disappointed" that Congress left for recess without passing legislation. She spoke after touring the Borinquen Medical Center, a health clinic close to the Wynwood area where 21 non-travel related cases of Zika have been diagnosed.

"Everybody has a stake in this. And that's really why I'm here," Clinton said. "We don't want to wake up in a year and read more stories about babies like the little girl who just died in Houston."

It's an issue that could affect votes in this crucial swing state where she has held a small advantage in recent polls. So far, Republican Donald Trump has not addressed the issue in depth, though he told a Florida television station last week that Gov. Rick Scott, a Republican, "really seems to have it under control in Florida."

In Miami and beyond, there is growing concern about new cases of Zika.

Until this month, the only known cases in the United States were in people who had recently traveled to Latin America or the Caribbean. Federal officials last week warned pregnant women to avoid the Miami neighborhood and a square-mile area around it.

Lawmakers left Washington in mid July for a seven-week recess without approving any of the $1.9 billion that President Barack Obama requested in February to try to develop a vaccine and control the mosquitoes that carry the virus.

Obama, Clinton and Democrats blame Republicans for politicizing the legislation by adding a provision to a $1.1 billion take-it-or-leave-it measure that would have blocked Planned Parenthood clinics in Puerto Rico from receiving money.

Republicans, in turn, say that the administration has not spent money that has already been provided and that it's the Democrats who are playing politics in an election year.