Pandemic prevention
Stopping pandemics before they start through coordinated global action.
Pandemic prevention is the organization and management of measures aimed at stopping pandemics before they emerge or spread globally. It focuses on reducing causes of new infectious diseases and preventing outbreaks from becoming pandemics, distinct from mitigation efforts that seek to lessen negative impacts after a pandemic begins. The field addresses natural zoonotic threats as well as emerging risks from bioterrorism and laboratory accidents involving enhanced pathogens.
Quick Facts
- Mers-cov case fatality rate
- around 35%
Facts from the source article.
Measures
Robust public health systems with active surveillance and health care coordination capacity are needed to stop contagion promptly. After an outbreak begins, a window of opportunity exists during which authorities can still prevent a pandemic by isolating the first infected individuals or fighting the pathogen. Effective measures require good global infrastructure, rapid information exchange, minimal bureaucratic delays, and targeted treatment preparations. In 2012, pandemic prevention was proposed as an aspect of international development, focusing on health-care infrastructure and changes to human-environment-animal pathogen dynamics. Local health workers in Africa, Asia, or Latin America often detect unusual symptom clusters but lack resources for detailed investigation. Scientists have stated that research relevant to countries with weaker surveillance, lab facilities, and health systems should be prioritized, and that vaccine supply routes in those regions should not rely on refrigeration while diagnostics should be available at the point of care. Public health systems in each country need to detect contagion early, diagnose accurately, implement effective disease control, and collaborate with international authorities. U.S. officials have proposed reforms to international health regulations and global institutions. The entire architecture of epidemic response may need to evolve from crisis response during discrete outbreaks to an integrated cycle of preparation, response, and recovery. Policies supporting global biosafety can use technologies including laboratory containment, and proposals include limiting research on highly contagious agents to trained researchers in well-protected environments with advanced biosafety systems and biohazard disposal, improving physical security, and educating scientists about misuse potentials.
Prevention versus mitigation
Pandemic prevention seeks to stop pandemics from occurring, while mitigation aims to reduce their severity and negative impacts. Some have called for a shift from a treatment-oriented society to a prevention-oriented one. A 2010 study argued that contemporary global disease control focuses almost exclusively on responding after pandemics have already spread globally, and that developing systems to prevent novel pandemics before they are established should be considered imperative to human health. Peter Daszak commented on the COVID-19 pandemic that prevention was very possible but governments thought it too expensive and pharmaceutical companies operate for profit. The WHO reportedly lacked the funding and power to enforce large-scale global collaboration. Nathan Wolfe criticized current global public health strategies as reminiscent of 1950s cardiology that focused solely on responding to heart attacks while ignoring prevention. Nevertheless, mitigation measures remain important, such as developing novel far-ultraviolet light for easy sterilization.
Historical incidents
During the 2002–2004 SARS outbreak, rapid action by national and international health authorities including the WHO helped slow transmission and break the chain, preventing a pandemic. Human-to-human transmission of SARS may be considered eradicated, but SARS-CoV-1 probably persists as a zoonotic threat in its animal reservoir, warranting monitoring of atypical pneumonia cases. Effective isolation controlled spread because infected individuals usually do not transmit until several days after symptoms begin and are most infectious after developing severe symptoms. In January 2022, Chinese scientists reported detection of NeoCoV and PDF-2180-CoV in bats, with a study finding that one mutation could produce a theoretical 'MERS-CoV-2' using the human ACE2 receptor and carrying a high mortality burden given MERS-CoV's case fatality rate of around 35%. The study emphasized the need for pathogen surveillance, and the WHO stated further study is needed on whether the detected virus poses a risk to humans. On 21 May 2022, the WHO reported on the international 2022 monkeypox outbreak in non-endemic countries, with the first case detected on 6 May 2022. Early containment used ring vaccination of close contacts alongside pre-exposure vaccination of higher-risk public members.
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