Responding to COVID-19 pandemic: Why a strong health system is required

Preclinical study of formulated recombinant nucleocapsid protein, the receptor binding domain of the spike protein, and truncated spike (S1) protein as vaccine candidates against COVID-19 in animal models

BACKGROUND

In this pre-clinical study, we designed a candidate vaccine based on severe acute respiratory syndrome-related -coronavirus 2 (SARS-CoV-2) antigens and evaluated its safety and immunogenicity.

METHODS

SARS-CoV-2 recombinant protein antigens, including truncated spike protein (SS1, lacking the N-terminal domain of S1), receptor-binding domain (RBD), and nucleoprotein (N) were used. Immunization program was performed via injection of RBD, SS1 +RBD, and SS1 +N along with different adjuvants, Alum, AS03, and Montanide at doses of 0, 40, 80, and 120 μg at three-time points in mice, rabbits, and primates. The humoral and cellular immunity were analyzed by ELISA, VNT, splenocyte cytokine assay, and flow cytometry.

RESULTS

The candidate vaccine produced strong IgG antibody titers at doses of 80 and 120 μg on days 35 and 42. Even though AS03 and Montanide produced high-titer antibodies compared to Alum adjuvant, these sera did not neutralize the virus. Strong virus neutralization was recorded during immunization with SS1 +RBD and RBD with Alum. AS03 and Montanide showed a strong humoral and cellular immunity; however, Alum showed mild to moderate cellular responses. Ultimately, no cytotoxicity and pathologic change were observed.

CONCLUSION

These findings strongly suggest that RBD with Alum adjuvant is highly immunogenic as a potential vaccine.

The Tragedy of Liberal Democratic Governance in the Face of Global Threats

In hindsight, the early response of liberal governments to the SARS-CoV-2 pandemic was chaotic and generally inefficient. Though one might be tempted to attribute these failures to the incompetence of certain political decision-makers, we propose another explanation. Global threats require a coordinated international response, which is only possible if the threat is perceived in the same way by all, and if government priorities are similar. The effectiveness of the response also relies on massive adhesion of citizens to the measures imposed, which in turn requires trust in government. Our hypothesis is that certain fundamental features of liberalism complicate such global and collective responses: neutrality of the state and primacy of the individual over collective society. Liberalism considers that institutions and public policy must not be designed to favor any specific conception of the common good. That which is best for all is usually determined by a "competition of opinions," which frequently leads to scientific expertise being considered as only one opinion among many. Liberalism also imposes strict respect for individual freedoms and private interests and tends to reject any form of collectivism or dictate imposed by the common good. In order to solve these structural problems and improve society's management of global threats, we make several proposals, such as the introduction of a minimal and consensual definition of the common good and the promotion of a health policy guided by One Health-like concepts. Overall, our analysis suggests that because political ideologies provide their own definitions of the common good and the place of scientific knowledge in the governance process and can thus affect the response to global threats, they should be urgently taken into consideration by public health experts.

Cancer Occurrence as the Upcoming Complications of COVID-19

Previous studies suggested that patients with comorbidities including cancer had a higher risk of mortality or developing more severe forms of COVID-19. The interaction of cancer and COVID-19 is unrecognized and potential long-term effects of COVID-19 on cancer outcome remain to be explored. Furthermore, whether COVID-19 increases the risk of cancer in those without previous history of malignancies, has not yet been studied. Cancer progression, recurrence and metastasis depend on the complex interaction between the tumor and the host inflammatory response. Extreme proinflammatory cytokine release (cytokine storm) and multi-organ failure are hallmarks of severe COVID-19. Besides impaired T-Cell response, elevated levels of cytokines, growth factors and also chemokines in the plasma of patients in the acute phase of COVID-19 as well as tissue damage and chronic low-grade inflammation in "long COVID-19" syndrome may facilitate cancer progression and recurrence. Following a systemic inflammatory response syndrome, some counterbalancing compensatory anti-inflammatory mechanisms will be activated to restore immune homeostasis. On the other hand, there remains the possibility of the integration of SARS- CoV-2 into the host genome, which potentially may cause cancer. These mechanisms have also been shown to be implicated in both tumorigenesis and metastasis. In this review, we are going to focus on potential mechanisms and the molecular interplay, which connect COVID-19, inflammation, and immune-mediated tumor progression that may propose a framework to understand the possible role of COVID-19 infection in tumorgenesis and cancer progression.

Strengthening public healthcare systems in India; Learning lessons in COVID-19 pandemic

COVID-19 pandemic has involved nations and incapacitated the health systems globally. The pandemic preparedness has been tested with immense losses. Universal health coverage is needed more than ever to recuperate from the effects of the current pandemic. Post pandemic, many lessons need to be learnt especially for developing economies like India where public healthcare system is grossly inadequate to take care of health needs of citizens. World Health Organization's framework of six health system building blocks was utilized to study the lessons learnt and actionable points in the post pandemic period. Participation in Global Health Security Alliance has to be stepped up with involvement in Joint external evaluation and development of epidemiological core capacities. National Health Security Action Plan needs to drafted and available for health emergences. Ayushman Bharat scheme should incorporate elements to address surge capacity at the time of health emergencies and measures to deliver care at the time of pandemic. Technology through telemedicine, m-health, and digital platforms or apps should contribute to trainings, supervision, and facilitation of healthcare delivery at remote locations. Open data sharing policies should be developed for the practice of evidence-based public health. Public healthcare system and health manpower trained in epidemiology should be given a boost to have system readiness to respond in case of future pandemics.

Collateral effects and ethical challenges in healthcare due to COVID-19 - A dire need to support healthcare workers and systems

COVID-19 has affected the daily activities of people across the globe. The effects of the pandemic have not just been medical, but also societal and economical. The responses of government and the public have varied in different countries. Measures have ranged from improving hygiene, information dissemination, and social distancing to more radical measures such as social isolation, quarantine and lockdown. The disease and human responses have had consequences on the way we live, work, eat and rest. Life and livelihoods have been affected. This article highlights how the response to the pandemic has affected various aspects of healthcare and ethical dilemmas this has raised. As the pandemic progresses, awareness and evaluation of the unintended consequences of the pandemic and responses on our health and healthcare systems are needed. Discussing these points and being aware of the ethical issues may help countries and policy makers plan suitable strategies to mitigate these collateral effects, especially as the pandemic continues. It is hoped that this article will support healthcare workers, especially those in primary and secondary healthcare, as they overcome various challenges to treat patients with existing and prior diseases, and encourage them to advocate for robust and sustainable healthcare systems for public health. This would then help effectively combat future epidemics. Most importantly, it can mitigate the adverse collateral effects on healthcare that the public are experiencing and the treatment dilemmas that family and primary care physicians are facing.