An Army veterinarian first took down Ebola in the United States

"From a pathology point of view, it's a fascinating virus," says Dr. Nancy Jaax, a veterinarian and Army officer. She's talking about the Ebola virus, a subject she knows a lot about, having prevented it from maybe spreading to the entire United…
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“From a pathology point of view, it’s a fascinating virus,” says Dr. Nancy Jaax, a veterinarian and Army officer. She’s talking about the Ebola virus, a subject she knows a lot about, having prevented it from maybe spreading to the entire United States. “The opportunity to work with such a unique virus was irresistible to me.”


When Jaax came to the United States Army Medical Research Institute of Infectious Diseases in 1979, not much was known about Ebola. They knew it killed 90 percent of those infected, and that was about it. It was a Biosafety Level-4 pathogen: fatal to humans, easily transmittable (maybe even by air), with no effective treatments or vaccines. So when it showed up in a group of monkeys shipped in from the Philippines, it could have been really bad for the Reston, Va. lab where Jaax was working. Luckily, the Army has people like Col. Jaax working for it.

Jaax joined the Army with her husband in the late 70s to pursue her veterinary residency. Right away, her work in veterinary medicine was significant, as she and her team discovered the first diagnosed coronavirus in military working dogs. But dogs getting colds were the least of the Army’s research needs. Jaax wound up at USAMRIID in the veterinary pathology program. A few years into her stint there is when the macaques from the Philippines were found to have Ebola. It was her job to actually look for the virus under the microscope.

When she looked at the tissue sample of the dead monkeys, she actually found they had two highly-lethal contagions: simian hemorrhagic fever, which is not contagious to humans, and Ebola. They had to shut down the facility – except for those exposed to the viruses.

This was also my gut response. But luckily cooler heads prevailed.

The Reston Ebolavirus spread to all the facilities animals, who had to be put down. Unfortunately, it also infected a number of the USAMRIID workers who worked alongside Jaax. When they went to “depopulate” the facility, just under 50 people were found to have contracted the virus. The only thing was, unlike the other strands of Ebola, none of the Reston workers actually got sick or showed symptoms. In fact, their bodies didn’t respond to the virus at all. It came and went.

No one knows why. What they do know (and the reason we can all sleep soundly at night) is that the Army’s quarantine procedures worked as planned. None of the monkeys escaped into an Outbreak-like scenario. There was no worker with a small symptom who was nervous about it but decided to hide it so he could take the Metro to go to his kids birthday party. The virus stayed put, the monkeys were contained, and no one let the virus out of the facility.

That’s why we have procedures.

You can watch the story of Dr. Nancy Jaax and her experience with Ebola on NatGeo’s new miniseries The Hot Zone, a three-night special premiering Memorial Day, May 27th at 9pm on National Geographic.