Coronavirus Outbreak: How do we mitigate the impact of gray rhino events in the future?— Part 3

COVID-19 is a gray rhino event as it could be seen in advance because of its size and the early warning it gave.

Sagar Dhara April 26, 2020 13:54:46 IST
Coronavirus Outbreak: How do we mitigate the impact of gray rhino events in the future?— Part 3

The Dutch sea captain Willem de Vlamingh never imagined in his wildest dreams that black swans could exist. He never saw or heard of one in Europe. In January 1697 he and his crew sailed up a river, later named Swan River, in Southwestern Australia to explore it. And much to their utter amazement they became the first Europeans to see black swans.

“Black swan” events are extremely rare and highly improbable events. They share three characteristics:

1) they are unpredictable

2) they have a massive impact

3) post the event, we concoct an explanation that makes it appear less random and more predictable.

Is the COVID-19 outbreak a black swan event?

Here are three reasons why it is not an unpredictable event.

First, there have been more than a dozen serious epidemics, many of them worldwide, in the last 100 years (see Box 5). The Spanish flu and smallpox killed 50 million people each. Eighteen million Indians died of Spanish flu. HIV killed 30 million people. The Asian flu and Hong Kong flu killed at least a million people each. But they have faded quickly from public memory.

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A medical staff checks the temperature of a girl at the Oking Hospital in Kohima, Nagaland. Image credit: AP Photo/Yirmiyan Arthur

Second, a paper is written by four Chinese scientists titled, Bat coronavirus es in China, published on 2 March 2019, specifically warned, “it is highly likely that future SARS- or MERS-like coronavirus outbreaks will originate from bats, and there is an increased probability that this will occur in China. Two bat origin CoVs caused large-scale epidemics in China over fourteen years, highlighting the risk of a future bat CoV outbreak in this nation. Therefore, the investigation of bat coronavirus es becomes an urgent issue for the detection of early warning signs, which in turn minimizes the impact of such future outbreaks in China.” The Chinese government, which funded this study through its science academies, did not heed the warning it carried.

Third, Tedros Adhanom Ghebreyesus, Director-General of WHO, speaking at the World Government Summit, Dubai on 12 February 2018, warned the world, “A devastating epidemic could start in any country at any time and kill millions of people because we are still not prepared. The world remains vulnerable.” The world heard him but did not listen to him.

COVID-19 is not a black swan event. It is a “gray rhino” event, one that is a highly probable and with a potentially large impact. Gray rhino events can be seen in advance because of their size and the early warning they give. Yet, they are ignored. India has had many big gray rhino events in the past.

Recent Indian gray rhino events

India’s record of handling gray rhino events is poor and leaves doubts about how it will handle the coronavirus outbreak. There have been occasions though when it has rolled up its sleeves and done a particularly good job like in the Machilipatnam cyclone or what Kerala is doing now to control COVID-19 .

1984 Bhopal gas tragedy: Union Carbide made Sevin, a carbamate group pesticide, in its Bhopal plant. Soon after the plant went into production, Sevin lost market space to the next generation pesticides and the company slipped into losses. Consequently, safety and environmental management standards in the plant declined.

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The immediate aftermath of the 1984 Bhopal gas tragedy

Between 1981-84, the plant had a series of accidents (see Box 6). This prompted journalist Raj Kumar Keshwani to write three articles lamenting on the plant’s poor safety conditions, and warning Bhopal that it was on the brink of a disaster. A state government minister responded saying, “The Carbide plant is not some small pebble that can be picked up and put elsewhere.”

Forty-two tonnes of Methyl Isocyanate (MIC) leaked on the cold winter night of 2 December 1984, killing about 8,000 persons immediately. Another 17,000 died subsequently of chronic toxic effects.

1999 Ersama cyclone: Odisha is hit by a severe cyclone almost every year, and by a super cyclone once every few years. A super cyclone hit Ersama block in coastal Orissa on 29 October 1999. Three 10-metre high storm surges swept everything in their path for up to 20 km inland, killing about 50,000 persons.

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The destruction caused by the 1999 Ersama cyclone

2004 Indian Ocean earthquake and tsunami: Indonesia is frequently rocked by earthquakes and the offshore ones sometimes generate tsunamis. On 26 December 2004, a 9.1 magnitude offshore earthquake near Sumatra, Indonesia generated tsunami waves that rose to 9 m before they hit coasts of 14 countries along the Indian Ocean rim, and wreaked enormous destruction. About 250,000 persons died, including 10,000 on the Tamil Nadu and Andhra Pradesh coasts.

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The destruction caused by the 2004 Indian Ocean earthquake and tsunami

 

Information failures increase lives lost

Information plays a critical role in minimizing the probability of a gray rhino event from becoming a disaster. Information throughputs have five stages—generation, transmission, interpretation, access, and use. An information failure at any of these stages increase the probability of a hazard hit converting into a disaster.

The 2004 Indian Ocean earthquake and tsunami disaster in India was an information generation failure. India did not install seabed sensors in the Bay of Bengal to detect tsunami pressure waves. It was also an information transmission failure as the Indian government was informed about the tsunami soon after it hit the Andaman Islands (see information timeline), which lie close to Sumatra. It took another two hours before the tsunami hit India’s east coast, which was adequate to evacuate fisherfolk inland. Failure to do that was a criminal act of negligence which cost India 10,000 lives.

Information timeline after tsunami wave was generated off the coast of Sumatra, Indonesia 

6.29 am 7.30 am 8.00 am 8.56 am 9.00 am 10.30 am 12.00 noon 5.45 pm
Quake strikes Sumatra. India Meteorological Department (IMD) knows about it by 6.40 am, but could not analyse data as its computer developed a snag, Indian Air Force (IAF) Nicobar informs IAF Tambaram, who inform IAF Chief who alerts Defence Min Waves lash Machilipatnam, Chennai, Cuddalore, on India’s southeast coast. Faxes sent to Secretaries of Department of Science & Technology, Home Ministry, Home Minister. Tsunami waves strikes east coasts of India, Sri Lanka. Cabinet Secretary calls Port Blair. Secretary of Ocean Development briefs him. Crisis Manage-ment Group meets.
Indian Navy ships dispatched to Andaman Islands.

The IMD computer being down and not available to analyse the incoming data also made this event an information interpretation failure.

The Bhopal gas tragedy was an information access failure. People in Bhopal were sleeping when a highly toxic MIC gas cloud formed at the Carbide plant and drifted slowly downwind towards JP Nagar, Chola Khenchi slums and areas further south. Being heavier than air, the gas cloud hugged the ground, and remained concentrated as the prevailing low wind speed dispersed it very slowly. People woke up and ran to save themselves. But they ran downwind and remained in the gas cloud, inhaling a large amount of toxic MIC gas.

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Bhopal site map

Had they known that they should move perpendicular to the wind direction, the quickest way to get out of a gas cloud, and cover their nose and mouths with a wet cloth as MIC is soluble in water, many thousands of lives may have been saved, and injury would have been less. Not a single Carbide worker died on the as they were aware that running upwind and away from the gas cloud was the best way to save themselves.

 

 

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Movement of the toxic gas cloud

The Ersama cyclone disaster was an information use failure. The National Remote Sensing Agency (NRSA) provided the Odisha government with satellite pictures of the cyclone’s path for 3 days prior to the cyclone making landfall. Yet, the Odisha government did not use this information. If the coastal population had been evacuated, most of the 50,000 people who lost their lives would have lived.

There are other examples of hazard strike events that became disasters due to information failures. One of them is the 7.5 magnitude (on the Richter scale) Bhuj earthquake that occurred on 26 January 2001. Hundreds of buildings collapsed in several cities in Gujarat killing about 25,000 people and causing a financial loss of Rs 25,000-50,000 crores.

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NRSA satellite pictures showing the cyclone’s progress for 3 days before landfall

Had the buildings been built to Bureau of Indian Standards (ISI) codes for earthquake resistant structures, far fewer people would have died. BIS codes were available for engineered and non-engineered buildings but were not used, making this event an information use failure.

Bhuj is in a Zone 5 (most earthquake prone) seismic region, making it a high-risk area. Damage to Gujarat Housing Board colonies built to ISI standards, was minimal, but Shikhar Towers, Himgiri Apartments, and 170 other buildings in Ahmadabad crashed as they were not built to ISI standards.

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Bhuj in maximum risk seismic zone

In a quake of similar magnitude that shook Seattle soon after the Bhuj quake happened, only 3 persons died as structures in that city conformed to building standards for earthquakes.

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Destruction of non-quake resistant buildings

 

Lack of emergency response plans and action increase loss of lives

Six elements that constitute emergency response plans and actions (ERPA)—event prediction, warning, hardware and facilities, risk avoidance action by public, emergency response plan (ERP), and the emergency response actions (ERA)—if in place, minimize loss of life when natural or man-made hazards strike. Each missing element increases the probability of the event converting into a disaster and causing great loss of life. A comparison of two cyclones—the 1990 Machilipatnam cyclone that hit the Andhra coast and the 1999 Ersama cyclone—illustrates this point (see Box 7).

Prior information (event prediction) about a hazardous event—its nature, magnitude, hit location and time, lead time between event prediction and hit—helps save lives. Using satellites, IMD tracked the Machilipatnam and Ersama cyclone for several days before they made landfall, and predicted their intensity, landfall location and time accurately. Event predictions for both these cyclones was good.

An effective warning before a hazard hit must fulfil 6 criteria—it should come in time, reach everyone, be appropriate for the event, be unambiguous about the action people should take, sound credible, and be specific to the risk posed by the impending event. The Machilipatnam warning met all these criteria.

The Ersama cyclone warning met the first 3 criteria—it came in time, reached most people on the coast and was appropriate to the event. But it failed the next 3 criteria as it was ambiguous, lacked credibility and was vague. The warning bundled weather and emergency-action information, creating doubt whether people should use their judgement or follow instructions. The warning for the Ersama cyclone was remarkably like the one for a lower intensity cyclone that hit the Ganjam coast 10 days before the Ersama cyclone occurred. As the Ganjam cyclone did not cause much damage or death, going by the similarity between the Ersama and Ganjam cyclone warnings, people thought that Ersama cyclone would be like the Ganjam one. When in doubt people prefer status quo; they stayed home during the Ersama cyclone and were swept away by its giant waves.

The chances of taking risk-avoidance/ mitigation action are higher when people know the risks they face and the choices they have. People in Machilipatnam were ready to evacuate their villages as they had cyclone emergency drills earlier. People in Ersama were not put through such drills and therefore were less aware of the danger they faced and the action they should take to save themselves.

The infrastructure and hardware that Odisha had was highly inadequate--23 cyclone shelters, a police wireless system that died when the cyclone worked itself into a fury, and no backup communication system. Andhra Pradesh had 1,041 cyclone shelters, a police wireless system that could withstood 250 km/hr windspeeds, and a backup active ham radio network.

Odisha had no emergency response plan (ERP) for cyclones and therefore no emergency response action happened in Ersama. Two lakh persons were kept safe in Machilipatnam by evacuating them.

The consequence—50,000 persons died in the Ersama cyclone, even though it happened 9 years after the Machilipatnam cyclone. Less than 1,000 persons died in the Machilipatnam cyclone.

Information failure and lack of emergency response plans will affect India in COVID-19 pandemic

A critical information failure in the COVID-19 outbreak in India is the lack of information on the total number of cases. This can be acquired through extensive testing and good surveillance. But on both counts, India’s effort falls below the curve. When cases are detected at an early stage, they can be isolated immediately and treated. This minimizes the time they are in contact with the people, thus reducing infection spread. India has an information generation failure in its COVID-19 control programme.

Several elements of the emergency response to the coronavirus outbreak in India have failed either partially or entirely.

Event prediction: India was forewarned of the coronavirus outbreak in general way in the form of knowledge of previous virus outbreaks, WHO DG’s warning that a viral epidemic could happen anytime, and the Chinese paper on the possibility of a coronavirus outbreak. India should have had a viral outbreak response plan but does not seem to have one.

The Indian government would have become aware of the coronavirus outbreak in China by early-January 2020. Though there may have been some confusion about the possibility of human to human transmission till 21 January, this was dispelled by the last week of January when WHO declared a global health emergency.

Warning: India had about eight weeks of warning time to prepare before the case numbers started going up sharply towards end-March. Kerala prepared for a coronavirus outbreak from January, but the rest of India did not.

Risk avoidance action by people: As people’s understanding of the risk that coronavirus poses, and the actions they need to take to stay safe is sketchy, their response has been varied. While most people are willing to live with the lockdown, migrants want to return to their villages. Some resistance was visible in Surat in the second week of April when migrants rioted as they wanted transport to return to their villages. Physical distancing is difficult for slum dwellers, and for many ordinary people it is an alien concept.

Infrastructure and facilities: India’s public health system is weak. Isolation and ICU beds, ventilators, doctors, and nursing staff are less than what is required for a large COVID-19 outbreak.

Emergency response plan: The only visible document is the ‘Containment Plan.’ It was prepared in the first week of April and covers plans only for local transmission. Plans for community transmission and epidemics have either not been prepared yet or are not available in public domain.

Emergency response action: India’s response action can best be described as jerky. The way the lockdown was declared gives the impression that the lack of preparedness and the enormity of the problem may have made the government panic. No thought was given to how migrants would respond to a sudden lockdown announcement, and the beating the economy would take because of the break in the supply chain of almost all goods and services, the loss of income to farmers, unorganized labour and self-employed. The steps after lifting the lockdown do not seem to have been thought through either.

India’s actions give the impression that it is playing it by the ear and “muddling through,” which is not the best way to handle a health emergency. But India is not alone in doing this. It has the US, GB and many other countries keeping it company.

Box 5: Pandemics in the last century

Date Deaths Event Disease Location
Jumped into humans from:
1877–1977 500 M Smallpox Worldwide
1899–1923 >800 K Sixth cholera pandemic Cholera Europe, Asia, Africa
1910–12 40 K 1910 China plague Bubonic plague China
1915–26 1.5 M 1915 Encephalitis lethargica pandemic Encephalitis lethargica Worldwide
1918–20 50-100 M Spanish flu Influenza A virus subtype H1N1 Worldwide Pigs
1957–58 2 M Asian flu Influenza A virus subtype H2N2 Worldwide
1968–69 1 M Hong Kong flu Influenza A virus subtype H3N2 Worldwide
1974 15 K 1974 smallpox epidemic of India Smallpox India
1981–present >32 M HIV/AIDS pandemic HIV/AIDS Worldwide Chimpanzees
1998-2018 350-500 Nipah virus infection Nipah Malaysia, Southeast Asia, Kerala (India) Bats
2002-04 774 Severe Acute Respiratory Syndrome (SARS) SARS-CoV-1 China, Hong Kong, Singapore, Worldwide Bats, Civet cat
2009-10 150-575 K Swine influenza virus (SIV) Swine flu Worldwide Pigs
2012-17 666 Middle East Respiratory Syndrome (MERS) Camel flu Saudi Arabia, South Korea, UAE, Worldwide Bats, Camels
1976-2019 1,590 Ebola outbreak Ebola Sudan, Zaire, Guinea, DR Congo, West Africa Bats
2019-present 80 K on 8 Apr 2020 Coronavirus outbreak"}"> Coronavirus outbreak COVID-19/ SARS-CoV-2 Worldwide
Bats, Pangolin, or another small mammal

Box 6: Series of accidents in the Union Carbide plant, Bhopal, 1981-84

  • In 1981, a worker was splashed with phosgene. He ripped off his mask in panic, inhaling a large amount of phosgene gas. He died 72 hours later.
  • In January 1982, 24 workers exposed to phosgene were hospitalized. None of the workers had been ordered to wear protective masks.
  • In February 1982, an MIC leak affected 18 workers.
  • In August 1982, an engineer came into contact with liquid MIC, resulting in 30% body burns.
  • In October 1982, there was a leak of MIC, methyl carbaryl chloride, chloroform, and hydrochloric acid. In attempting to stop the leak, the MIC supervisor suffered intensive chemical burns and two other workers were severely exposed to the gases.
  • During 1983 and 1984, leaks of the following substances regularly took place in the MIC plant: MIC, chlorine, monomethylamine, phosgene, and carbon tetrachloride, sometimes in combination.
  • Reports issued by scientists within the Union Carbide Corporation months before the Dec.2 incident warned of the possibility of an accident almost identical to that which occurred in 1984. The reports were ignored and never reached senior staff.
  • Union Carbide was warned by American experts who visited the plant after 1981 of the potential of a "runaway reaction” in the MIC storage tank; local Indian authorities warned the company of problems on several occasions from 1979 onwards. Again, these warnings were not heeded.

Box 7: How Emergency Planning and Response Actions save lives

Six factors minimize loss of life during hazard strikes. The Ersama cyclone’s high death toll was because of four factors, and a part of the fifth,
were out of place.

Elements of emergency response plan Ersama (1999) Machilipatnam (1990) COVID-19 (2019)"}" data-sheets-numberformat="{"1":2,"2":"#,##0","3":1}"> COVID-19 (2019)
1. Event prediction
Nature of expected event Yes Yes Yes
Event magnitude Yes Yes Yes
Event location Yes Yes No
Hit time Yes Yes Difficult to predict
Lead time 75 hrs Adequate 1 year
2. Warning
In time Yes Yes
India had 10-12 weeks warning time
Reach everyone Yes Yes Yes, reached government
Appropriate to event Yes Yes Yes to government
Unambiguous No Yes
Initial confusion in WHO’s warning
Credible No Yes
Loss of credibility due to initial confusion
Specific to event No Yes Yes
3. Risk avoidance action People confused People willing to act
People willing to act, some reaction visible
4. Infrastructure
India’s public health system poor
Cyclone shelters 23 1041
Wireless No No
Ham radios No Yes
5. Emergency response plan No Yes
‘Containment plan’ is available in public domain. Not known if other ERPs exist
Vulnerable zones mapped Yes Yes
Vulnerable structures mapped Yes No
Emergency response organization No Yes
NDRF exists, but not trained for epidemics
Emergency response codes No No
Triggers for lockdowns not prepared
Emergency response action plan No Yes
6. Emergency response action No 2 lakh people
Government’s actions jerky, playing by ear
Deaths 50,000 <1.000

 

The author is an environmental engineer with specialization in risk analysis

Also Read: 

Coping with the lockdown but is India prepared for an outbreak? — Part 2

Is the COVID-19 pandemic a black swan or a gray rhino event? — Part 1

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