Virginia enters the book as the site of a startling collision: Ebola virus was found among imported monkeys in a research facility in Reston, within Fairfax County, turning an ordinarily quiet suburban setting into the focus of a high-stakes biological response. The episode tested both the ability to contain an unfamiliar virus and the ability to communicate its danger without provoking panic.

The outbreak in Reston

On November 1, 1989, colony manager Bill Volt called Dan Dalgard because monkeys recently shipped from the Philippines were dying in unusually large numbers. Volt had counted twenty-nine deaths in a shipment of one hundred. At the same time, the monkey house was overheating: a failed thermostat kept the heaters running while the air-conditioning system did not engage. Volt wondered whether the heat was stressing the animals. Most of the deaths had occurred in Room F, making that room the initial focus of concern.

When Dalgard arrived the following week, Volt led him through a warm cinder-block corridor to Room F. The affected animals were crab-eating monkeys from the October shipment from Ferlite Farms in the Philippines. The room’s concentration of sick and dead monkeys made the facility, rather than any identified human case, the immediate center of the developing crisis. The overheating offered a possible contributing stressor, but the evidence does not establish it as the cause of the deaths.

Authorities and public communication

Once the agent was identified as Ebola, officials at Fort Detrick recognized that the response crossed several jurisdictions. At 6:30 p.m., calls were made to Dan Dalgard and Virginia state health authorities; the team also identified the need to notify Fairfax County, the United States Department of Agriculture, the United States Environmental Protection Agency, and the Pentagon. The sequence of calls shows how quickly a local animal-health alarm became a matter for state, county, federal, and military attention.

The news reached the public through a Washington Post report describing deadly Ebola virus in laboratory monkeys in Virginia. C. J. Peters, who was helping direct the response, limited what he told reporters. He wanted to avoid disclosing the more alarming operational details and feared that a fuller account could trigger a rush of people trying to leave Reston. The communication strategy therefore became part of containment: alongside the effort to control the virus inside the facility, officials sought to keep the story from creating a public panic. The account notes a consequential misunderstanding: readers could infer that the sick monkeys had already been destroyed, although the operation to address them was still underway.

The facility and the response

When Nancy Jaax and C. J. Peters visited the monkey house with Dalgard, they entered Room H to inspect sick animals. Gene Johnson had closed off the back rooms and sealed the main entrance with sticky tape. Jaax and Peters wore rubber gloves and surgical masks, but they noticed that workers inside were not wearing respirators, despite Dalgard’s instruction that they should. Neither visitor was offered one. The discrepancy unsettled them, but they did not press the issue during their first opportunity to see the building.

The animals they saw were subdued; some cages stood empty, and others held monkeys that appeared ill and were not eating. The visit conveyed the scale of the problem while exposing gaps between intended precautions and what people were actually wearing. The larger operational concern was that hundreds of monkeys remained inside the building. Peters feared that simply waiting while the infection spread through the colony could allow the virus to amplify. Virginia was thus not merely the address of an outbreak: it was where authorities had to weigh the hazards of intervention against the risks of delay.

Human infection and significance

The outbreak ultimately left no human casualties, but later testing showed that four men who had worked as caretakers in the monkey house had been infected with Ebola Reston virus. The virus multiplied in their bodies without making them ill and eventually cleared from their blood. One worker, John Coleus, had cut his thumb with a bloody scalpel; the other three had no known cuts. Because infection occurred in workers without such an injury, researchers at the United States Army Medical Research Institute of Infectious Diseases concluded that transmission through the air among monkeys was a likely explanation, though the precise route into each man’s bloodstream was not established.

The contrast between severe disease in the monkeys and symptomless infection in the caretakers made the Reston episode significant beyond Virginia. It showed that infection and illness did not necessarily coincide in humans, while leaving open questions about transmission and the virus’s future behavior. The suburban location also sharpened the practical stakes: officials were managing a dangerous animal outbreak in a populated American setting, where biological precautions, interagency authority, and public messaging all had to operate at once.