A Dallas lab worker does not have Ebola, according to Reuters.

After there was a scare of another possible case of Ebola in the United States, a woman who was linked to Thomas Eric Duncan, the lone person to die from Ebola in the United States so far, was cleared of having the virus on Sunday. According to CNN, the woman works as a lab supervisor at Texas Health Presbyterian Hospital, the same hospital where Duncan was treated and eventually died in.

The lab worker, whose name has not been released, voluntarily isolated herself on a Caribbean holiday cruise she occupied until she had her blood tested. While the woman did not have direct contact with Duncan, it is believed that she might have come in contact with blood samples from Duncan while working in the hospital lab. Her blood sample was tested and it was found that she does not have the virus.

The woman, along with other passengers of the cruise who came in contact with her, were all tested. The other passengers are expected to be cleared as well today and tomorrow.

Two other women who worked at the Hospital that Duncan died in have been diagnosed with Ebola. The two women effected, nurses Nina Pham and Amber Vinson, both came in contact with Duncan while treating him in the hospital. Pham’s condition has been described as fair according to the Epoch Times, while Vinson’s condition is being described as stable, but “worse than previously thought,” according to Daily Mail Online. Pham is being treated at the National Institutes of Health in Bethesda, Maryland, while Vinson is being treated at Emory University Hospital in Atlanta, Georgia.

Currently, there are four cases of Ebola in the United States.