Florida is home to more than 3.6 million women aged 15 to 44 years. With more than 400 Zika virus cases reported in Florida to date, the state has become a top focus in the public health battle to curb the spread of Zika infections in the U.S.
Gathering and mapping such data using GIS software from Esri is part of the U.S. Department of Health & Human Services (HHS) Office of the Assistant Secretary for Preparedness and Response’s (ASPR) effort to combat this growing health risk domestically and internationally.
The health impacts of the Zika virus are greatest on developing fetuses. Drawing on U.S. Census data, Esri is showing experts at the ASPR and other agencies within HHS where best to target information and reach women of child-bearing age and their partners.
To plan for the domestic assistance that states may need, ASPR also is using Esri software to monitor the spread of the Zika virus across the U.S. and in 34 other countries where infections have been found.
Using Esri software, ASPR created a publicly available interactive map that shows the number of cases in each state. The information is automatically updated each week.
The Zika virus is spread to people primarily through the bites of infected Aedes aegypti mosquitoes; however, the virus has also been found to be transmitted sexually. The virus can cause Guillain-Barré syndrome in adults and children and can cause a serious birth defect called microcephaly.
“Prevention is the first course of action in protecting public health, but people need information to make decisions about what preventive actions to take,” said Este Geraghty, chief medical officer and health solutions director, Esri. “Using GIS technology to locate the most vulnerable populations is a first step in educating people on the risks of the Zika virus and about actions that can protect health and curb the spread of disease.”
For more information on Esri and using GIS for vector-borne disease surveillance and control, visit go.esri.com/pr-zika.
Colombia – Percent Change in Cumulative Zika Cases by Department, Feb. 13 -March 26, 2016.
Pacific Disaster Center (PDC) is using the Esri platform to track the outbreak of the Zika virus on a global scale. By sharing mapped intelligence with health services and aid responders, PDC is able to provide essential information that defines the characteristics of the virus and its carrier’s breeding grounds.
“Esri provides the backbone for visualizing an event and understanding the locality and context for any disaster, including the Zika virus,” said Ray Shirkhodai, PDC executive director.
The center provides situational awareness information for all manner of disasters. Esri, the world leader in geographic information system (GIS) software, creates technology that generates smart maps derived from a wide variety of data resources and then publishes them across information networks.
PDC uses these capabilities to add different data layers — hospital density, rain, vector programs, and so forth—to maps. Maps make it easier and faster for disaster managers to understand the scope of a region’s vulnerability to disease. The center serves its map products around the world to organizations that depend on it for intelligence about specific regions.
“Esri GIS technology specifically allows us to characterize the Zika virus outbreak and contextualize it for decision makers,” explained Joseph Green, PDC’s health risk specialist. “Our maps describe the distribution of suspected cases at national levels throughout Latin America and the Caribbean.”
PDC gathers Zika virus information from weekly epidemiology updates and bulletins obtained from health organizations worldwide. In return, the center publishes regular updates, including online maps that track the increase and decrease of reported and suspected cases over time.
The solution to containing the Zika virus is to dispose of mosquitos, which carry the disease. Mapping regional vulnerabilities to virus outbreaks highlights the value of mosquito management programs. Learn more about using GIS for vector-borne disease surveillance and control at go.esri.com/vector-ready.
Esri is hosting a free one-hour webinar “Effective Vector-Borne Disease Surveillance and Control” on Thursday, May 26, at 11 a.m. PDT. The webinar will help city and county staff implement a complete workflow that is driven by understanding the location of information.
Geographic information systems (GIS) technology plays a vital role in monitoring and eradicating mosquitos, and ramping up to fast and efficient response when outbreaks occur. The webinar will introduce how the Esri ArcGIS platform can help create smart communities when collecting and analyzing data, improving operations and response times, and communicating critical information with the public.
When vector-borne disease outbreaks occur, fast, effective response protects people from infection and its consequences,” said Este Geraghty, Chief Medical Office and Health Solutions Director, Esri. “Integrated pest management programs respond through the vital functions of prevention, surveillance, and control activities. Temporal and spatial information are critical to those efforts to curb the spread of disease. Organizations that harness the power of a location platform can achieve faster, more efficient response.”
Speakers are Este Geraghty, chief medical officer and health solutions director, Esri; and Jared Shoultz, health and human services technical specialist, Esri.
For more information on how Esri solutions help with vector-borne disease surveillance and control, visit go.esri.com/vector-ready.
Longing for the good old days when we mostly worried about nukes
Years ago, Navy colleague Commander Stephen Rose drew a lot of attention at the Naval War College with his essay entitled “The Coming Explosion of Silent Weapons.” The essay was awarded both the Colbert Memorial Award and the Joint Chiefs of Staff Writing Prize. I never thought that 27 years later his paper would seem so timely and highlight the critical need for the geospatial work being done by the NIH (National Institutes of Health), CDC (Centers for Disease Control), DTRA (Defense Threat Reduction Agency), U.S. Army and others.
In his paper, Commander Rose reviewed emerging warfare technologies including chemical warfare, biological warfare, gene splicing, nano technology, remotely piloted vehicles (RPVs) and more. He compared the complexity and expense of a country trying to develop a nuclear capability compared to the relative ease and low cost of developing chemical and biological weapons, which were sort of a “poor man’s nuke.”
Although, years later, the countries named in the paper have not changed significantly: Iran, Iraq, Syria and Libya. You can read the full paper at the Naval War College website.
Worrisome at the time, most of us took comfort in the built-in deterrence that was intrinsic with chemical and, more so, biological weapons. It was a genie that with a slight change of wind direction could hurt friendly troops as easily as enemy troops. Even more problematic, biological agents could affect not only friendly troops but even the user’s families in their own home towns. So for the past 27 years we’ve whistled past the graveyard in the belief that no one would be crazy enough to use biologics.
Although we were Cold War enemies, I knew that my Soviet counterparts shared most of my values. They enjoyed life, loved their families, relished their vodka and just wanted to go home and perhaps work on their Dachas. Even Star Trek Klingons were philosophically not that different from either of us. Enter the 21st century, and now suicide bombing has become a virtue with cash rewards paid to the surviving family members and a path to heavenly pleasures for the bomber. This, of course, changes everything.
Congressional testimony by National Intelligence Director Clapper and others have pointed to a growing concern about chemical and biological attacks. Additionally, some terrorists are not intellectual lightweights. Recently, the former Iraq chemical and biological expert Sleiman Daoud al Afari was captured, and this week the number two man in ISIS, former physics professor Haji Imam, was killed. So is it just a matter of time before someone with the right knowledge, skills and relatively light resources builds a biologic that gets out of control?
Esri Federal GIS Medical Special Interest Group
During the recent Esri Federal GIS Conference in D.C., I attended a session concerning GIS and global responses to pandemics and biological threats. The session was moderated by Dr. Este Geraghty, MD, MS, MPH, CPH, FACP, GISP, who is Esri’s chief medical officer.
Although the discussion focused mostly on the Zika virus, much of the background information covered the geospatial aspects of the Ebola outbreak in Africa. According to one of the presenters, David Foster, a U.S. contractor and prior Air Force veteran who participated in the response, the world response was quick, but it was also a dizzying collection of government and non-government agencies with more than 80 different responding groups. Somewhat disconcerting was that no one was really in charge and communications was poor.
Dr. Geraghty was kind enough to do a video interview, primarily focused on the concerns of this article and the need for a strong geospatial monitoring and analysis capability.
One example: Early GIS at CDC
In 199 when I retired from the Navy and became the GIS manager of the Atlanta Regional Commission, we established the region’s first Esri ArcView Learning Center. A number of CDC doctors and staff members took our ArcView II classes. Six months later, I was humbled with what those early students had accomplished. They used the relatively basic ArcView II to map disease outbreaks domestically and worldwide. The maps provided a valuable visualization tool that helped with understanding complex outbreaks and how to combat their spread.
The growing need for more sophisticated spatial monitoring, analysis and display led to the creation of GRASP (Geospatial Research, Analysis and Services Program). CDC and the Agency for Toxic Substances and Disease Registry, Division of Toxicology and Human Health Sciences (ATSDR/DTHHS) worked to build the needed geospatial capability, and in 2013 Booz Allen Hamilton was awarded a competitive contract to build a unified and comprehensive GIS support system for CDC and ATSDR.
GRASP program specifics include:
GIS analysis, research and geospatial statistics.
GIS remote sensing imagery analysis.
Cartographic design and production.
GIS web/desktop/mobile application design, development and maintenance.
GIS shared service design, development and maintenance.
GIS database design, development, management and maintenance.
GPS data-gathering, training and support.
GIS systems integration.
GIS training.
GIS project management.
GRASP has grown into a sophisticated monitoring and analysis system. When a serious outbreak occurs, CDC responds like other emergency response organizations and stands up an Emergency Operations Center (EOC) in accordance with the National Incident Management System (NIMS). GRASP maps, imagery and visualizations help everyone understand the nature and scope of the threat by creating a common operational picture.
This capability is further enhanced with new Esri tools such as Insight, easy geocoding, big-data deep analysis, tools for activating response teams, as well as sharing and collaboration with other federal agency and resources such as GEOINT, HUMINT (human intelligence), SIGINT (signals intelligence) and social media.
Natural or man-caused, and who makes the call?
Getting back to Commander Rose’s paper, one is left with the following points to ponder. Following a conventional or nuclear attack, a country instantly knows three things: that it’s been attacked, when it was attacked and where it was attacked. As a result, the subject country stands a good chance of figuring out who did the attack.
Conversely, with a biological attack, a country may not know when or where the attack occurred, or if it was even an attack and not just a natural outbreak. This then becomes a tough decision for our analysts, because announcing a devastating outbreak as a biological attack could be tantamount to announcing a modern-day Pearl Harbor without the benefit of seeing burning ships or falling buildings. Additionally, the path from analysis to a definitive determination and by who may not be completely clear.
Existential threat?
So, are we in a Cornelian dilemma? Are we better off pulling back and lying low in hopes that “they” won’t hate us enough to initiate a suicidal attack that launches Armageddon? Or do we act preemptively with all our intelligence and military resources to beat down any group that shows the slightest inclination and potential to entertain this suicidal activity?
Some politicians have stated that although we lost more than 3,000 people during 9/11, it was a relatively small percentage loss in the grand scheme of things; that the U.S. is so big and so powerful that we don’t face an “existential threat.” So one would have to ask if the loss of 10, 20 or 50 percent of our population would be existential enough?
Complicating the issue, as some of my intel colleagues are fond of pointing out, is that if some actions we are currently taking or not taking seem to make no sense, it’s probably because you don’t know all the facts.
Regardless, our monitoring and analysis capability may be one of the most important activities being done by our geospatial community. Additionally, we need to make sure that our protective agencies get what they need to do the monitoring and analysis to keep us safe. My hope is that we really are doing what needs to be done and not just dreaming of the good ol’ days when all we had to worry about was a nuclear attack.
The Zika virus is spread to people primarily through the bites of infected Aedes aegypti mosquitoes; however, the virus has also been found to be transmitted sexually. The virus can cause Guillain-Barré syndrome in adults and children and can cause a serious birth defect called microcephaly.
