The US Food and Drug Administration (FDA) is warning consumers that fraudulent treatments for Ebola virus disease are being marketed online.

Although some experimental therapies and vaccines are in early phases of development, no products for treating Ebola infection have been approved by the FDA. So far, only limited data are available about the safety and effectiveness of the products being tested, and only small supplies are available, according to the agency. Experimental therapies were used to treat 2 US health care workers who were moved to Atlanta after they became infected with Ebola virus while caring for patients in West Africa, where there is an ongoing outbreak.