More information about the Zika virus. Two ranking officials of the Centers for Disease Control discussed the situation at a White House briefing. It includes eye problems and premature births. In addition, the mosquito blamed for spreading the virus has been found in 30 states instead of the 12 that the CDC had found previously.

More on the fight against the virus from FOX's Eben Brown:

The nation's top disease prevention experts are hoping to convince Congress to listen to the Obama administration's request for nearly two billion in additional funds to combat a potential spread of Zika virus:

(Dr. Shuchat) "Everything we look at with this virus seems to be a bit scarier than we initially thought."

Doctor Anne Shuchat of the Centers for Disease Control says Zika will likely not spread wildly inside the U.S. as it has in Latin America:

(Dr. Shuchat) "But I can say that we can't assume we're not going to have a big problem."

The virus is now blamed for thousands of cases of birth defects of babies born to infected mothers.

In Miami, Eben Brown, FOX News.