Health professionals are urging people to avoid contact with people with the Zika virus.
The virus is spreading rapidly in the Americas, and the World Health Organization says more than 1.4 million people are at risk.
Health workers and experts say a person with Zika could transmit the virus to others.
If they do, they could get severe illness.
“We’re really concerned about people who are pregnant or are nursing,” said Dr. John McLeod, an infectious disease specialist at the University of Calgary.
“The risk is there and we’re really just trying to be alert and get people to stay away from those areas.”
Dr. McLeod said people with Zika should avoid traveling to areas where the virus is present, especially to those where it’s spread from infected people to others, such as a community of people who live near someone who has it.
People with other symptoms of the virus, such a fever and rash, should also avoid public places and places where mosquitoes can breed, he said.
“This is an extremely contagious disease,” McLeod added.
The risk of getting the virus during a mosquito bite is higher in the warm months of the year, and is more common in areas with low humidity.
McLodle said it’s important to check a person’s temperature regularly and make sure they’re well hydrated.
“If you can get the virus in a very warm place, then you’re probably at increased risk of contracting it,” he said, noting people with colds or flu-like symptoms are more likely to transmit the Zika infection.
The Centers for Disease Control and Prevention advises people who have had contact with someone with Zika to get tested.
“In general, we would advise people to take extra precautions to protect themselves,” said CDC spokeswoman Melissa Schulte.
The CDC recommends people who travel to the Americas for business, tourism or other economic activity get tested, as well as those who have traveled to South America.
“Those who travel are also particularly vulnerable,” Schultec said.
A CDC spokesperson said people who contract Zika in the United States have been advised to stay home and avoid public gatherings or public places, including parks, playgrounds and parks.
Anyone who has been exposed should contact their health care provider immediately and get tested for Zika.
The Zika virus can cause mild or severe symptoms, including fever, rash and conjunctivitis.
Symptoms can include mild headache, joint pain, muscle aches and red eyes.
Symptoms usually disappear within a week.
Health officials say the virus can be mild in the short term and can cause fever and conjustivitis, which can last for weeks.
If you have symptoms of Zika and are thinking about getting tested, contact your health care practitioner immediately.