October 16, 2014

A second Dallas hospital nurse, Amber  Vinson, who treated Liberian Ebola victim Thomas Duncan before his death has tested positive for the deadly virus, Texas Health Presbyterian Hospital confirmed yesterday. Public health officials in Texas continue to monitor some 48 contacts of Duncan and the health care workers who treated him. However, that number is rising.

The Centers for Disease Control and Prevention (CDC) disclosed yesterday that Ms. Vinson flew on a commercial jet from Cleveland to Dallas on October 13. “She should not have traveled on a commercial airline,” CDC Director Tom Frieden subsequently stated. “The CDC guidance in this setting outlines the need for what is called controlled movement.” However, it was revealed today that Ms. Vinson did, in fact, contact the CDC before flying home to Dallas and reported that she had a fever with a temperature of 99.5 °F (37.5 °C). CDC officials did not stop her from boarding the plane because her temperature was below the range the CDC then categorized as dangerous. The CDC is currently attempting to contact the more than 130 passengers and crew aboard Frontier Airlines Flight 1143 on Monday.

Scientists remain unsure about the exact ways in which the Ebola virus (above) is transmitted. (Cynthia Goldsmith)

CDC Director Frieden has expressed regret about his agency’s initial response to the first Ebola case in Dallas. “In retrospect, with 20/20 hindsight, we could have sent a more robust hospital infection control team and been more hands-on with the hospital from Day 1.” The CDC has since issued stricter guidelines for U.S. hospitals with Ebola patients. The guidelines are closer to the procedures used by Doctors Without Borders, a Paris-based relief organization that is currently battling the Ebola epidemic that has killed some 4,500 people in West Africa.

Amber Vinson was flown last night from Dallas to Atlanta, where she entered Emory University Hospital. An American doctor and nurse, Kent Brantly and Nancy Writebol, who contracted Ebola while working in Africa, were successfully treated at Emory in September. The physician who oversaw their treatment, Sean G. Kaufman, today condemned the earlier CDC guidelines as “absolutely irresponsible and dead wrong.”

Additional World Book article:

• Disease Detectives (a special report)
• The Origin of New Diseases (a special report)