Emerging zoonotic diseases and COVID-19 pandemic: global Perspective and Indian Scenario

Identifying the panorama of potential pandemic pathogens and their key characteristics: a systematic scoping review

The globe has recently seen several terrifying pandemics and outbreaks, underlining the ongoing danger presented by infectious microorganisms. This literature review aims to explore the wide range of infections that have the potential to lead to pandemics in the present and the future and pave the way to the conception of epidemic early warning systems. A systematic review was carried out to identify and compile data on infectious agents known to cause pandemics and those that pose future concerns. One hundred and fifteen articles were included in the review. They provided insights on 25 pathogens that could start or contribute to creating pandemic situations. Diagnostic procedures, clinical symptoms, and infection transmission routes were analyzed for each of these pathogens. Each infectious agent's potential is discussed, shedding light on the crucial aspects that render them potential threats to the future. This literature review provides insights for policymakers, healthcare professionals, and researchers in their quest to identify potential pandemic pathogens, and in their efforts to enhance pandemic preparedness through building early warning systems for continuous epidemiological monitoring.

Public opinion on global COVID-19 vaccine procurement and distribution policies: A nationally representative survey in Aotearoa New Zealand 2022

The World Health Organisation and many health experts have regarded vaccine nationalism, a "my country first" approach to vaccines procurement, as a critical pandemic response failure. However, few studies have considered public opinion in this regard. This study gauged public support for vaccine nationalism and vaccine internationalism in a representative survey in New Zealand (N = 1,135). Support for vaccine internationalism (M (mean rating) = 3.64 on 5-point scales) was significantly stronger than for vaccine nationalism (M = 3.24). Additionally, support for openly sharing COVID-19 vaccine manufacturing knowledge and technology (M = 4.17 on 5-point scales) was significantly stronger than support for safeguarding vaccine manufacturers' intellectual property (M = 2.66). The public also supported a utilitarian approach that would see distributions based on need (M = 3.76 on 5-point scales) over an equal proportional international distribution (M = 3.16). Akin to the few preceding studies, the present observations suggest that the public is likely to be more supportive of pandemic responses that are globally equitable and long-term orientated. Our findings have substantial implications for pandemic preparedness as the congruence or lack thereof of public vaccine-related values with government policies can affect public trust, which, in turn, can affect public cooperation. It may pay for governments to invest in proactive public engagement efforts before and during a pandemic to discuss critical ethical issues and inequities in global vaccine procurement and distributions.

From fever to action: diagnosis, treatment, and prevention of acute undifferentiated febrile illnesses

Acute Undifferentiated Febrile Illness (AUFI) presents a clinical challenge, often characterized by sudden fever, non-specific symptoms, and potential life-threatening implications. This review highlights the global prevalence, types, challenges, and implications of AUFI, especially in tropical and subtropical regions where infectious diseases thrive. It delves into the difficulties in diagnosis, prevalence rates, regional variations, and potential causes, ranging from bacterial and viral infections to zoonotic diseases. Furthermore, it explores treatment strategies, preventive measures, and the critical role of the One Health approach in addressing AUFI. The paper also addresses the emerging zoonotic risks and ongoing outbreaks, including COVID-19, Rickettsia spp., and other novel pathogens, emphasizing their impact on AUFI diagnosis and management. Challenges in resource-limited settings are analyzed, highlighting the need for bolstered healthcare infrastructure, enhanced diagnostics, and collaborative One Health strategies. Amidst the complexity of emerging zoonotic threats, this review underscores the urgency for a multifaceted approach to mitigate the growing burden of AUFI, ensuring early diagnosis, appropriate treatment, and effective prevention strategies.

A comprehensive review of Langya virus and framework for future zoonotic disease control

First reported in August 2022, the Langya virus (LayV) has emerged as a potential global health threat in the post-COVID-19 era. Preliminary reports show that 35 patients near Shandong and Henan, China experienced a febrile acute LayV infection. We conducted this review following the PRISMA protocol to synthesise current knowledge on LayV's characteristics in terms of molecular, clinical, and public health perspectives. This virus belongs to the Paramyxoviridae family and carries a non-segmented, single-stranded negative-sense RNA genome. Shrews may be the natural reservoir of the virus. Clinical symptoms range from mild flu-like symptoms to severe manifestations involving pneumonia, haematological disorders, and organ dysfunction. Diagnostic methods include PCR and ELISA assays. Despite the absence of established treatments, antiviral drugs such as ribavirin and chloroquine may be useful in some cases. In light of prevention, a comprehensive approach that emphasises multidisciplinary collaboration is crucial for early surveillance and response. Urgent global efforts are needed for vaccine development and preparedness against this potential pandemic threat. As the viral dynamics remain uncertain, a proactive approach is vital to mitigate the impact of not only LayV but also future threats on a large scale in long term.