Federal and state health officials have reported that contact with bodily fluids, such as tears and saliva, may transmit the Zika virus.
In the U.S. and its territories, there are now more than 10,000 reported cases of Zika, including 1,220 pregnant women with lab-confirmed infections.
Federal health authorities on Monday urged pregnant women not to visit a South Florida neighborhood where new cases of the Zika virus have emerged.
A recently issued Zika virus map shows how the virus is spreading in both hemispheres. Experts believe an outbreak in the U.S. this summer is inevitable.
The CDC says that certain types of laminate flooring poses a cancer risk; the risk of cancer is now set at six to 30 cases per 100,000 people.
Health officials have confirmed that two people contracted the Zika virus via a blood transfusion - days after a sexual transmission of the disease was reported.
A sexually transmitted case of Zika in Texas has scientists wondering how much of a risk infection through sex is for the usually mosquito-spread illness.
Zika virus: The CDC has issued an alert recommending enhanced precautions or postponed travel.