Monday, March 16, 2020

Resilience in the age of COVID-19



Today is 16 March 2020 and I am writing this post to “clear the air” regards to the realities and challenges of the ongoing COVID-19 crisis that is striking the globe.  Now, I am not a medical professional, an immunologist, a public health professional, or even a biologically focused person.  I do, however, listen and know many of these people.  I also read carefully and respectfully what the experts are putting out for us to digest.  This said, however, I am also a person that knows quite a bit about emergency planning and emergency response thanks to specific assignments and experiences in the US Army.[1]  Further, in my work at George Mason University and at Clarkson University studying and executing preparations to build resilience of campuses and communities, I can also speak to how we can and should react so as to best mitigate the effects of any kind of disaster, including an infectious disease crisis.  It is from that perspective, therefore, I will begin and end this discussion.

To begin with, resilience, simply put is the ability of a system, a society, or an individual, to “bounce back” from a disruption, trauma, disaster, or other stressor.  Here is how Merriam-Webster defines reliance:

“noun
1: the capability of a strained body to recover its size and shape after deformation caused especially by compressive stress
2: an ability to recover from or adjust easily to misfortune or change”[2]

To that end, one of the most popular ways to depict and describe the topic of resilience is using the reliance curve (also known as the critical functionality curve for resilience) as illustrated in Figure 1:

Figure 1. General form of the resilience curve as defined by rebound

For more on this curve, what it describes and useful for as well as its critiques and limitations, please watch this very informative set of videos by a colleague of mine, Dr. Thomas Seager of Arizona State University, made with others from the Naval Post Graduate School, in the area of speaking about infrastructure:

Critical Functionality Curve (1 of 3) for Resilient Infrastructure – Explanation:  https://www.youtube.com/watch?v=uX9Evd5374s.[4]
Critical Functionality Curve (2 of 3) for Resilient Infrastructure – Critique:  https://www.youtube.com/watch?v=HSIYsyDyEdw[5]
Critical Functionality Curve (3 of 3) for Resilient Infrastructure – Alternatives:  https://www.youtube.com/watch?v=L1OhvCzDF74[6]

Thus, what is critical to understand is that the recovery time and total functional rebound from an event is dependent upon the depth of absorption required of the system, society, or individual.  To that end, efforts to build resilience focus on how to both minimize the stressors as well as increase the capacity to absorb said stressors.  Thus preparation and learning can aid in the latter (capacity to absorb) and anticipation of, and adaption during, the acute trauma or stress enables the ability to aid in the former (minimize the stressor).  In the current crisis regarding the COVID-19 outbreak, we are no longer in a preparation stage nor are we in an anticipation stage (it is here).  While we are certainly constantly learning, where we are now is in the stage where we need to adapt in order to mitigate the depth of absorption our systems must take, lest they are unable to recover.

This brings us then to the nature of this crisis and the nature of what the COVID-19 virus means to our social and medical systems.  One of the best ways to get a handle on what the COVID-19 crisis is doing is to check out the John’s Hopkins live mapping tool for tracking cases of the disease:  https://www.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6.  What is important to track is the graphic on the bottom right of the chart, shown here as Figure 2:

Figure 2. COVID-19 Virus spread over time, as of 16 March 2020

So you will note, in this tracking tool, that while the rise in Chinese cases occurred earlier (late January through mid-February), the rest of the world is having a much higher spike (driven largely by the European cases) well in advance of the rate of the Chinese cases per day.  The Chinese rate of infection, we have to remember, was, in part, initially hidden but also a result of extreme restrictions on behavior, which have now resulted in a leveling out of the infection rate.  What we are seeing elsewhere ought to alarm us, as we have seen situations like this before, historically, and in open societies, we are wont to take the draconian measures the Chinese have taken.

Let us touch first on the history.  In 1918, at the end of World War 1, an outbreak of a new disease, termed “the Spanish Flu,” broke out across the world.  This virus was not traditional influenza, but an H1N1 avian flu disease.  What makes this similar to the contemporaneous COVID-19 outbreak, is that this was a novel virus that had not struck before.  For that reason, like today, “[w]ith no vaccine to protect against influenza infection and no antibiotics to treat secondary bacterial infections that can be associated with influenza infections, control efforts worldwide were limited to non-pharmaceutical interventions such as isolation, quarantine, good personal hygiene, use of disinfectants, and limitations of public gatherings, which were applied unevenly.”[8]  To that note about uneven application, the following chart, Figure 3, is illustrative of the effects in two communities, Philadelphia, PA and St. Louis, MO. 

Figure 3. Effects of social distancing on the 1918 flu epidemic

Succinctly, the chart illustrates what happened when social distancing, as an adaptive measure, was applied and when it was not.  The consequence was that failure to implement an effective adaption strategy resulted in system overload and a serious spike in deaths as a result of the outbreak.  Returning to the resilience curve, the system was not able to absorb the impact and thus resulted in many more deaths than when adaptive measures were employed.  As is seen in the St. Louis case infections and deaths still occurred, but that both the intensity (number of deaths per day) as well as the magnitude (total number of deaths; area under the curve) was minimized.  Again, when it was a novel disease outbreak, a stressor to use resilience language, adaptive measures were critical to ensuring a better rebound and recovery from the disaster.

Many have inappropriately categorized this outbreak as being nothing other than a “flu breakout”, going as so far as to say and cite that there have been more deaths as a result of influenza this year, so far, as have been from COVID-19.  Were this 1918, that might be an apt comparison, but this is 2020.  As such, when it comes to influenza in 2020 as it compares to COVID-19 in 2020, several things are critical to consider.  First, for the flu we have a vaccine and we have treatment regimens that don’t require hospitalization in large numbers within short periods of time.  Second, making it worse, the mortality rate (number of deaths per incident of known infection) is higher than we see in contemporaneous flu strains,[10] both as a consequence of the lack of a good preventative as well as its mode of attack in the body.[11]  Third, this is a novel virus, so tracking the cases has not been as good as we do with the flu, but what we’ve seen so far is much more concerning.[12]  Fourth, the rate of infection (the slope of the curve), is not as steep for flu (illustrated in Figure 4) as for COVID-19 (illustrated in Figure 5).  So the problem here is the RATE of infection is exceptionally high (we are currently tracking with Italy and Iran) with a treatment requirement that uses a high amount of resources (it’s a pneumonic disease requiring ventilators in many cases), without a known pharmaceutical solution (either as a vaccine or a drug treatment regimen).

Figure 4. Cumulative Rate of Confirmed Influenza Hospitalizations

Figure 5. Cumulative Rate of Confirmed Influenza Hospitalizations


Returning then to resilience as a way to analyze this problem, what is needed is to slow the rate of infections to allow us to a) buy time so we can get a better non-hospital treatment in place (which may not happen for another 12-18 months),[15] and b) not overwhelm the limited hospital based resources we have (roughly 35 ICU bed per 100,000, unevenly distributed around the country).[16]  To do that, we need to do things to slow the spread and prevent those most vulnerable from getting it inadvertently (noting that, again unlike the flu, the incubation period can be over 14 days from contact to symptoms appearing).[17]  This means, to use a hypothetical, that 4th grade Julie can have contracted the virus from neighbor Bill and consequently share it with her whole class including Bobby, Shelly, and Bart who all live with their ailing grandparents who are particularly susceptible and have a higher mortality rate.  What we need to do is follow the public health recommendations to keep physical separation and work to curtail anything non-essential.  The reason for this is that what has been termed “social distancing” is an adaptive tool that has proven effective to slow the rate of the spread of the disease, so as to make its transmission and treatment manageable.  This is illustrated in the chart below, Figure 6.

Figure 6. Social distancing effect on cumulative cases of corona virus

All of this requires us to maintain a level head and manage the adaption process carefully but swiftly so as to address the crisis in the best way possible.  Our goal is to engage in adaptive capacity while at the same time not compromising the systems that are responsible for absorbing the impact of this stressor.  To that end, we need to take this in a measured serious way.  For instance, we need to recognize that by running out and hoarding goods, we are likely to make the situation worse or take away from those in greater need than ourselves.  We still need to have access to basic needs and we still have to have the ability to have medical services operate effectively.  This means we’ve got to have truckers on the road and shippers shipping and fuel stations for the above, and so on and so forth.  Yes, we need to keep all of that to a minimum, and we need to keep the interactions between everyone to as small a set of numbers as possible, but we can’t “close everything”, otherwise we’ll exacerbate the problem by not getting the needed supplies and personnel to where it’s needed as well as have people not having the things they need to survive at home.  We also need to recognize that what we are trying to do is to slow the rate of infection, not stop the infection itself.  We can’t currently stop it (as articulated above) and engaging in mass psychosis about being infected will only heighten fears that lead to non-rational behaviors and longer term damage than the disease itself.[19]

So, what do we need to do to accomplish that.  First, we need to minimize our physical space contact with one another.  Avoid large gatherings, avoid places where significant infection is underway, and avoid doing anything that is not necessary.[20]  If you can work from home, we need to move to that mode.  Further, we need to support mission critical workers (health workers, emergency management professionals, military members, public service employees, key logistics support members, etc.) with having patience and forgoing on-demand items as well as only buying and getting what you need.  Luckily, we have technology we can rely on to make much of this happen.  But we also have to recognize not everyone is so equipped, so we also need to look out for our neighbors and families and help where we can.

Next, get with your public officials and deliver the message that they need to lead us by telling us we have to make some sacrifices in the short-term hardship now to avoid widespread devastation later.  Do so, however, by telling them to shut-down all non-essential services and carefully keep running, and manage well, the absolutely minimally essential services and goods to see us through.  Do NOT insist on having them “close everything,” which will only stoke fear and cause problems for the overall response system that we are relying on.  To that end, public language needs to be very clear to say what we mean and mean what we say.  This means we have to have leadership not obscure facts nor heighten fears, but instead provide steady, concerted and concerned messaging that follow the best advice our public health community can provide us.[21]  And these leaders do have to make the tough choices that will require us to forgo wants (as compared with bonafide needs) until we can have better handle on the rate of infection and have treatments that can mitigate mortality rates across the board.

Finally, we ought to remain humble enough to pray or otherwise connect with our spirituality.  Some may see this assertion as inappropriate for an otherwise academically focused post.  That, however, is actually false.  Spirituality has been shown in several studies to be a key coping mechanism that enables greater resiliency to traumas.[22]  To that end, if not already making this connection, I would encourage us to do so amidst this challenge to ourselves and our broader society.  This may not be by going to your normal worship services if that is your norm, but it does mean that we should connect with one another and with our spiritual side to enable us to have the necessary hope from which to build as we recover from this stressor.  We are in this together and its key that we make that a priority.

To conclude, what we in the resilience community know is that we need to do our best, in the midst of a crisis to adapt and to minimize the core disruptions so that we can reduce the depth of impact and amount of time to recovery.  This is not the end, this isn't the Black Death, but a disruption; one we can and will recover from.  To that end, we need to do all of the above to stay resilient and enable us to come out as well as we can on the other side.  Thanks and all the best to you and all of us in these challenging times.





[1] one of which was a 3-year stint at a FEMA liaison officer at the Pentagon dealing with many a crisis from Super-storm Sandy to fires in California to the Ebola virus outbreak in west Africa.
[2] “Definition of RESILIENCE,” accessed March 16, 2020, https://www.merriam-webster.com/dictionary/resilience.
[3] Azad M. Madni, Dan Erwin, and Michael Sievers, “Constructing Models for Systems Resilience: Challenges, Concepts, and Formal Methods,” Systems 8, no. 1 (March 2020): 3, https://doi.org/10.3390/systems8010003.
[4] Critical Functionality Curve (1 of 3) for Resilient Infrastructure - Explanation, accessed March 16, 2020, https://www.youtube.com/watch?v=uX9Evd5374s.
[5] Critical Functionality Curve (2 of 3) for Resilient Infrastructure - Critique, accessed March 16, 2020, https://www.youtube.com/watch?v=HSIYsyDyEdw.
[6] Critical Functionality Curve (3 of 3) for Resilient Infrastructure - Alternatives, accessed March 16, 2020, https://www.youtube.com/watch?v=L1OhvCzDF74.
[7] “Coronavirus COVID-19 (2019-NCoV),” accessed March 16, 2020, https://www.arcgis.com/apps/opsdashboard/index.html#/bda7594740fd40299423467b48e9ecf6.
[8] “1918 Pandemic (H1N1 Virus) | Pandemic Influenza (Flu) | CDC,” June 26, 2019, https://www.cdc.gov/flu/pandemic-resources/1918-pandemic-h1n1.html.
[9] Carolyn Y. Johnson et al., “Social Distancing Could Buy U.S. Valuable Time against Coronavirus,” Washington Post, accessed March 16, 2020, https://www.washingtonpost.com/health/2020/03/10/social-distancing-coronavirus/.
[10] “No, Coronavirus Isn’t ‘Just Like The Flu’. Here Are The Very Important Differences,” accessed March 16, 2020, https://www.sciencealert.com/the-new-coronavirus-isn-t-like-the-flu-but-they-have-one-big-thing-in-common.
[11] “Yale New Haven Health | Influenza (Flu) vs Coronaviruses,” accessed March 16, 2020, https://www.ynhhs.org/patient-care/urgent-care/flu-or-coronavirus.
[12] “Yale New Haven Health | Influenza (Flu) vs Coronaviruses.”
[13] CDC, “Weekly U.S. Influenza Surveillance Report (FluView),” Centers for Disease Control and Prevention, March 13, 2020, https://www.cdc.gov/flu/weekly/index.htm.
[14] Dylan Scott, “How the US Stacks up to Other Countries in Confirmed Coronavirus Cases,” Vox, March 13, 2020, https://www.vox.com/policy-and-politics/2020/3/13/21178289/confirmed-coronavirus-cases-us-countries-italy-iran-singapore-hong-kong.
[15] “Coronavirus Vaccine: Development, Timeline, and More,” accessed March 16, 2020, https://www.medicalnewstoday.com/articles/coronavirus-vaccine.
[16] “SCCM | United States Resource Availability for COVID-19,” Society of Critical Care Medicine (SCCM), accessed March 16, 2020, https://sccm.org/Blog/March-2020/United-States-Resource-Availability-for-COVID-19.
[17] Tomas Pueyo, “Coronavirus: Why You Must Act Now,” Medium, March 15, 2020, https://medium.com/@tomaspueyo/coronavirus-act-today-or-people-will-die-f4d3d9cd99ca.
[18] Pueyo.
[19] “How Fear of Contagious Diseases Fuels Xenophobia,” Stanford Graduate School of Business, accessed March 16, 2020, https://www.gsb.stanford.edu/insights/how-fear-contagious-diseases-fuels-xenophobia.
[20] Pueyo, “Coronavirus.”
[21] Pueyo.
[22] Julio F. P. Peres et al., “Spirituality and Resilience in Trauma Victims,” Journal of Religion and Health 46, no. 3 (September 1, 2007): 343–50, https://doi.org/10.1007/s10943-006-9103-0.