Showing posts with label pandemics. Show all posts
Showing posts with label pandemics. Show all posts

February 21, 2021

The Next Big One

              As new cases of Covid-19 fall throughout the world but the US approaches 500,000 deaths from Covid-19 and the world nears 2.5 million deaths, it is time to start planning for the next pandemic. 

               We have known since the 1918 influenza pandemic, which killed upwards of 50 million people world-wide, that it’s not a question of if, but rather of when. Moreover, recent decades have seen the emergence of several new and terrifying diseases. These diseases have principally been caused by viruses, viruses that jumped species. They moved from their usual host, say a civet or a bat, into people for one of several reasons: climate change may have destroyed their hosts’ usual habitat, forcing them to find a new home where they came into greater contact with humans; alternatively, humans encroached on the hosts’ habitat by clearing forest or planting a crop that deprived the host of its usual food source, again leading the host to relocate; or humans may have developed a taste for certain types of wild animal, bringing the two species into unaccustomed contact and thus facilitating viral transmission.

              As a result of these factors, we have had Zika, SARS, MERS, avian influenza and now Covid-19 in the twenty-first century, and Ebola, Marburg hemorrhagic fever, and HIV in the last part of the twentieth century. These are only the best-known of “zoonoses.” Today, 75 percent of new infectious diseases are zoonotic in origin and their numbers have been rising steadily. 

            The good news is that we know a great deal about how to go about preventing outbreaks, detecting them early, and responding if they nonetheless occur. The bad news is that the world in general and the U.S. in particular have a poor track record of implementing the necessary strategies. Allocating scarce resources now to help alleviate problems that will develop at some unspecified time in the future has proved to be a hard sell. 

                The irony is that we in the U.S., as in many other countries, spend an enormous amount of money on our military. We have accepted the need to devote a large fraction of our budget to the armed forces and to equipment including both “conventional” and nuclear weapons. We have not yet acknowledged that the far greater threat to our national security and our well-being is from lowly viruses, strange biological entities that are not strictly speaking alive since they cannot survive outside a host organism, not from invading armies. 

            The current US budget consists of just under $3 trillion on “mandatory spending,” which includes Social Security, Medicare, and Medicaid; and another nearly $1.5 trillion on “discretionary spending,” over half of which is for military spending, including the VA and Homeland Security as well as the armed forces. The base budget for the Department of Defense is $636 billion.

             By comparison, the CDC (Centers for Disease Control), the site for most of the U.S. epidemic preparedness activities, has a total budget of $6.6 billion, of which $509 million is allocated to “Emerging and Zoonotic Infectious Diseases.” Other disaster preparedness activities are financed through various departments, including Homeland Security, which is part of the military. But as a very rough approximation, it is not far-fetched to say that the core budget for potential epidemics is $509 million compared to the core budget for the military of $636 billion, or .08 percent.  This comparison reveals an enormous imbalance between spending on the military and on epidemic preparedness, with too much to fight armed invasions and not nearly enough to combat microbial enemies.

            If we are to spend more on epidemics—and, arguably, less on bombs and fighter planes—what should we spend it on? A basic framework was outlined at a symposium called “Building Interdisciplinary Bridges to Health in a Globalized World,” organized by the Wildlife Conservation Society in 2004. The symposium called for an international, interdisciplinary approach to preventing disease, or “One Health, One World.” It articulated its views in a document called the Manhattan Principles which laid the foundation for what would become an international movement. The Manhattan Principles is built on  the recognition that modern epidemics stem from the inter-connections between humans, domestic animals, and wildlife, and that these interactions arise either directly from human behavior (eg agricultural practices, clear cutting forests, and eating wildlife), or indirectly, mediated by climate change that is in turn due to human behavior. Since the problem is fundamentally multidisciplinary, its solution must likewise be multidisciplinary. And since the modern world is interconnected, the solution must be international, involving sharing information.

            An implementation framework was drawn up in 2008 by a group consisting of representatives from UNICEF, WHO, the World Bank among others. Entitled “A Strategic Framework for Reducing Risks of Infectious Diseases at the Animal-Human-Ecosystems Interface,” it argued for the development of an international system of disease surveillance drawing on multidisciplinary expertise (to include veterinarians, physicians, wildlife specialists, and ecologists). In addition, it sought to help build robust public health systems across the globe and to promote good communication between those systems. Finally, it advocated support for strategic research, to be shared internationally. 

            The One Health approach was adopted by the CDC in 2009, which housed it within its National Center for Emerging and Zoonotic Infectious Diseases. It was formally endorsed by the UN, the World Bank, and the EU in 2010. More recently, the World Bank came up with a revised operational framework to fight EIDS as a means of fulfilling its mission to promote prosperity and decrease poverty.

            Our response to future epidemics, when they occur, will hinge on more than international and multidisciplinary collaboration. Scientific developments are likely to have a major impact when future EIDs arise. The new technique of vaccine design using mRNA is vastly accelerating the development of effective vaccines, the most powerful preventive tool available. Work on anti-viral medications is ongoing and could revolutionize treatment of viral diseases much as antibiotics revolutionized the treatment of bacterial diseases. Currently, the only virus for which there is effective treatment is HIV, and that treatment (which took years to develop) involves a multi-drug regimen that converts HIV into a chronic disease but rarely eradicating the infection. 

            We also need to strengthen the public health infrastructure in the U.S. Poor coordination, insufficient manpower, and inadequate communication to the public have afflicted domestic public health departments for years. WHO and the World Bank have focused on shoring up public health in much of the world but assumed that the richest countries would serve as models of success. 

            The One World framework could itself be expanded to address climate and the environment more expansively, but the basic formulation is sound. As Andrew Cunningham, Peter Daszak, and James Wood argue in their 2017 article, “One Health: Emerging Infectious Diseases and Wildlife: Two Decades of Progress?” little has been done at the policy level to address what remain major threats to health and well-being, as Covid-19 attests. It’s time to adjust our national priorities and focus on what counts. 

 

 

December 07, 2020

Dateline: Pearl Harbor

Exactly 79 years ago today, Japanese planes bombed Pearl Harbor, an American naval base on Oahu, Hawaii, catapulting the U.S. into World War II. "A day which will live in infamy," President Franklin Roosevelt would call it--a day which lives on in the memory of the oldest Americans (though not, evidently, of the NY Times, which did not mention it in today's newspaper). The attack, which destroyed more than 300 planes and killed or wounded 3400 Americans, dealt a devastating blow to America’s sense of invulnerability and to our isolationist tendencies. It was also the last time the armed forces of a foreign nation would penetrate the American homeland. And yet, deep into the 21st century, the U.S. continues to place disproportionate weight on armed invasion as the major threat to the security of all Americans, young and old.

As the Covid-19 pandemic, the devastating wild fires on the west coast, and the unprecedented number of named storms this season demonstrate, America must address several other crucially important problems if its citizens are to remain safe and its democracy strong. Epidemics and climate change are two of the principal non-military threats; cyber-attacks and attacks on science are two additional substantial threats. 

Why do these non-traditional forms of attack constitute a threat to the national security? Epidemics have the potential to harm or kill tens of thousands, hundreds of thousands, or even millions of Americans; in addition, they can disrupt the economy (either because sick people cannot work or as society limits economic activity to protect health); and they can damage or destroy fundamental institutions such as the health care system by overwhelming its capacity. Climate change, by causing sea level rise, risks destroying coastal property or submerging entire cities; by contributing to natural disasters such as mudslides and wild fires, climate change endangers life and property. Rising maximum temperatures may make parts of the country uninhabitable or cause death from hyperthermia; they might destroy industries such as cod or lobster fishing as entire animal species migrate north in search of cooler waters. 

Cyber-attacks, whether carried out by state actors, by international terrorists, or by domestic criminals, can disrupt the financial system, the energy grid, our elections, or other fundamental institutions essential to the health and safety of Americans. Attacks on science constitute a fourth non-traditional threat, one that is just coming to be recognized as endangering both progress and our democracy: progress because a citizenry that rejects science will reject legislators who support science, resulting in diminished funding of the research essential for improvements in health and security; democracy because citizens cannot tell truth from falsehood will not have the information necessary to vote in their best interest. Undermining science will, in addition, exacerbate climate change and increase the likelihood of pandemics.

The idea that threats might not come from a foreign state actor but rather from microorganisms (in the case of a pandemic), from the anthropogenic production of greenhouse gases (in the case of climate change), from a computer hacker (in the case of cyber-attacks), or from lies and propaganda distributed via social media (in the case of the attack on science and, more generally, on truth, knowledge and expertise) represents a fundamental change in the way we need to think about national security. And just as the terrorist attacks of 9/11/2001 led to the creation of the Department of Homeland Security, so too should the current pandemic push us to reconsider the effort we devote to fending off other non-traditional types of attack. 

Consider the case of microbial threats. The idea of investing in pandemic preparedness is not new: the danger of pandemics and the importance of a coherent response strategy has been acknowledged by public health professionals since the influenza epidemic of 1918-1920. Each of the subsequent pandemics of the 20th century (Asian flu in 1957 and AIDS beginning in 1981), as well as the first pandemics of the 21st century (SARS in 2003, Swine Flu in 2009, and Ebola in 2014), brought renewed interest in both prevention and mitigation. Increased understanding of the origins of these outbreaks has led to a recognition of the importance of surveillance: we now realize that all the major pandemics have been zoonoses, they have arisen from viruses that jumped from one species, such as bats, to another species, humans, because of disruptions in the natural habitat of the original host. Furthermore, realization that global interconnectedness promotes rapid spread of the most readily transmissible organisms has resulted in an appreciation of the importance of international cooperation in combating pandemics.

Such recognition and realization emerged from thoughtful and comprehensive reports such as the workshop on "ethical and legal considerations in mitigating pandemic disease" sponsored by the Institute of Medicine. Its proceedings were published in 2007. This was followed in 2016 by a chilling report from the National Academy of Medicine, “The Neglected Dimension of Global Security: A Framework to Counter Infectious Disease Crises,” that made explicit the connection between national security and epidemics.

These documents did not just collect dust in government archives; their conclusions were, to a limited extent, translated into US public policy. Beginning with President Clinton, each presidential administration has put forward a new or revised pandemic preparedness plan. Congress authorized the establishment of a Global Emerging Infections Surveillance program within the Department of Defense in 1997, a program intended to improve surveillance, to foster prevention, and to plan for a response to potential new microbial threats. George W. Bush had his “Biodefense for the 21st Century” plan, precipitated by the anthrax scare, though this focused principally on bioterrorism, the deliberate dissemination of disease-causing organisms by state actors or individual terrorists. Obama had two: the “National Strategy for Countering Biological Threats” in 2009 and the “National Strategy for Bio-Surveillance” in 2012. Trump had his “National Biodefense Strategy” in 2018, which addressed naturally occurring, deliberate, and accidental biological threats, and theoretically centralized the federal response in the Department of Health and Human Services. 

These policies sound good on paper. But implementation, coordination, and funding have lagged. For example, the Centers for Disease Control budget allocation for prevention of zoonotic diseases in 2020 was $636 million out of a budget of $6.5 billion; Trump’s proposed 2021 budget asks for $550 million. The total Department of Defense allocation for FY 2021, by contrast, is $933 billion.

More generally, both the current (FY2020) and proposed (FY2021) federal budgets include support for combating pandemics and cyber-attacks, but do little to support combating climate change (the phrase is nowhere to be found) and nothing to defend against attacks on truth or on science. Even when the threats are acknowledged, the programs responsible for combating them are disseminated through multiple disparate agencies, are poorly coordinated, and receive only modest funding. 

Pearl Harbor Day should serve as a reminder of how threats to national security have changed in the three quarters of a century since Japanese bombers crossed the Pacific and entered American airspace. For starters, we should have a cabinet level department to take these new threats rather than embedding them into the Department of Defense, which has been structured to focus on the military. Perhaps we should simply reconfigure the Homeland Security Department, which no longer focuses on the prevention of terrorist attacks, the rationale for its establishment, but rather devotes its efforts to the enforcement of immigration policies. Immigration is not a threat to national security; but pandemics, climate change, cyber warfare, and the attacks on truth in general and on science in particular pose a real and present danger.