Five cases of malaria have been confirmed in Florida and Texas, the US Centers for Disease Control and Prevention (CDC) said , marking the first time in 20 years that there has been a local incidence of the potentially fatal mosquito-borne disease in the United States.
There were four cases detected in Florida and one in Texas, according to a health alert issued Monday by the Centers for Disease Control and Prevention.
Malaria was a medical emergency and anyone showing symptoms should be "urgently examined". CDC said.
But noted that the risk of contracting malaria remains low in the United States, and that most cases are acquired when people travel outside the country. She said 95 percent of malaria cases occur in Africa.