Florida Gov. Rick Scott declared a state of emergency Thursday in the four counties where people have been diagnosed with the Zika virus, the ABC News reported.

The four counties are Miami-Dade, Hillsborough, Lee and Santa Rosa.

There have been nine people in total who have been diagnosed with the Zika virus in Florida, though health officials believe that all of them contracted the disease while outside of the US.

Scott said he wanted the state to be prepared for the chance that the virus could start to be spread from mosquito to person within the state. The Aedes aegypti mosquito that is the primary vector of Zika virus infections is present in the southeast portion of the country, including Florida, though in winter the mosquito populations are low.

"Although Florida’s current nine Zika cases were travel-related, we have to ensure Florida is prepared and stays ahead of the spread of the Zika virus in our state," Scott said in a statement today.

"Our Department of Health will continue to be in constant communication with all county health offices, hospitals and the Federal Centers for Disease Control and Prevention (CDC). We know that we must be prepared for the worst even as we hope for the best.”