Like another recent microcephaly case in Texas, the baby's mother likely contracted Zika in Latin America during pregnancy.
Sampling and other activities are under way in Palm Beach County, where the newest case was reported, but the patient had traveled to Miami-Dade County.
The case is within the Wynwood neighborhood where 14 other local infections have been identified.
Three inactivated gene- and vector-based vaccines protected rhesus monkeys from a Zika challenge.
"Sobering reminder . . . that Zika can cause serious harm to a developing fetus."
The case is outside of Wynwood, where the other 14 cases were reported.
Antibodies from infected people were able to inhibit strains from both Asian and African lineages.
The stopgap funds will help track adverse outcomes in babies born to moms infected with Zika virus.
The CDC says pregnant women should avoid travel to a fairly small area north of downtown Miami.
"As we anticipated, Zika is now here," CDC Director Tom Frieden says.
