Health officials in Dallas County, Texas 2, confirmed that a local patient contact with infected with the virus, which is the first case in the United States in the case of infection. Dallas County Department of health and human services said in a statement 2, a patient because with another from Zika virus outbreak of the state of the infected return had sexual contact, so as to be infected. Tropical virus walled card, mainly through mosquito bites. Over the past year, the village card has infected about 1 million Brazilians, and spread to 23 countries in South America and central america.