The most common symptoms of Zika virus disease are fever, rash, joint pain, and red eyes.
As a response, Brazilian health officials delivered a stern warning to Brazilian couples to delay pregnancy as cases of infants born with damaged brains were reportedly caused by the mosquito-borne virus.
Aside from the concerns with pregnant women contracting the virus, Dr. Karpovs says Zika is usually mild, with only one in five people noticing symptoms.
The list, to date, includes Brazil, Colombia, El Salvador, French Guiana, Guatemala, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Suriname, Venezuela and Puerto Rico.
While zika does not spread from person to person, mosquitoes could feed on returning travelers carrying the disease before transmitting it to others. The virus is spread through mosquito bites.
There is no vaccine or medication to prevent or cure Zika virus infection, or to prevent microcephaly, prompting the agency to advise women take extreme precaution when traveling, or anywhere they could get bit by mosquitoes. The travel advisory it issued late Friday named Brazil and neighboring countries and territories throughout Latin America and the Caribbean where local transmission of Zika has occurred in recent months. In all cases, the alert said, women should take steps to avoid mosquito bites. The CDC is in the process of working out a system for collecting information about confirmed Zika virus cases, Skinner said.
There's been an increase in cases in some countries, but cases are starting to show up in the United States.
The Zika Virus comes from Mosquitos that mainly breed in those countries with a warmer climate.
A woman who was visiting Bergen County from Colombia has become New Jersey's first confirmed case of the Zika illness, according to the N.J. Department of Health. Cases of microcephaly multiplied 10-fold in Brazil in 2o15, which health experts attribute to the surge in Zika infections. The virus is circulating via mosquitoes in the Caribbean, Central America and South America. "When microcephaly is severe, babies can have other symptoms such as seizures, vision problems and developmental disabilities", she explained.
The Zika virus spreading north began as an outbreak in Brazil in May 2015 - an outbreak that has coincided with a spike of 3,500 cases of congenital microcephaly.
"People are making educated guesses", said Paul Roepe, co-director of the Center for Infectious Disease at Georgetown University Medical Center. The Hawaiian newborn is believed to be the first in the US born with the birth defect linked to the virus.