Skip to main content

#Pandemic #preparedness: analyzing national #plans for respiratory #pathogen pandemics in the #Americas region

Abstract

Background

The International Health Regulations (2005) (IHR), requires that States Parties develop their capacities to detect, assess, and respond to public health threats and report to the World Health Assembly through the States Parties Annual Report (SPAR). The National Pandemic Preparedness and Response Plans (PPRP) contribute to countries capacities however there are some discrepancies between both tools. To identify gaps and define priority actions to strengthen pandemic plans, we assessed the concordance between national pandemic preparedness and response plans for respiratory pathogens against the pandemic checklist published in 2023 and the SPAR.

Methods

In this retrospective, semi-quantitative study, conducted in August 2024, we reviewed the most recent respiratory pandemic plans for 35 PAHO member states and assessed their concordance with (1) actionable guidelines in the World Health Organization pandemic checklist and (2) IHR (2005) core capacities using the latest SPAR tool. We developed 25 tracking questions to identify gaps, strengths, and opportunities for improvement in the pandemic plans, using the pandemic checklist built on the capacities and capabilities described in the WHO’s Preparedness and Resilience for Emerging Threats (PRET) Module 1. We used a five-point scale (from 1, when the subcomponent was not mentioned, to 5, when the subcomponent was described at all levels), and we calculated the average pandemic plans score (PP score) for each component. Data from pandemic plans (2005–2024) were compiled, selected, analyzed, and scored. We compared the average SPAR score and the PP score to assess areas of convergence and variance between preparedness and capacities. The analysis was carried out using R and Excel.

Results

We analyzed 35 respiratory pandemic plans: 29 were influenza-specific, five were COVID-19-specific, and one was not pathogen-specific. Most current national plans showed limited alignment with the content recommended in the PRET pandemic checklist. At regional level, the lowest concordance between plans and pandemic checklist was in the following subcomponents Public Health and Social Measures (80% of the plans had a score of 1); Emergency, Logistics and Supply Chain Management (74%); and Research and Development (71%). Conversely, the strongest subcomponents (≥40% of plans with a score of 4 or 5) were: Policy, Legal, and Normative Instruments (45%); Coordination (46%); and Surveillance: early detection and assessment (43%). In most countries, the SPAR scores tended to be higher than PP scores, except for Argentina (the newest plan reviewed) for which the pattern was reversed, and the PP scores exceeded the SPAR scores.

Conclusion

Given the gaps identified between current plans and the global standards espoused by the PRET Module 1 initiative, it is recommended that countries build on the strengths of their national pandemic preparedness and response plans and update them using PRET module 1. This will support countries advance the capacities required by the IHR.

Source: Journal of Infectious Diseases, https://academic.oup.com/jid/advance-article/doi/10.1093/infdis/jiaf047/7994597

_____

Comments

Popular posts from this blog

#Neuroinvasive #Oropouche virus in a patient with #HIV from extra-Amazonian #Brazil

{Excerpt} A novel reassortant Oropouche virus (OROV) lineage (with medium [M], large [L], and small [S] RNA segments : M1L2S2) has driven Brazil's largest and most geographically widespread OROV epidemic , expanding beyond the endemic Amazon basin to establish local transmission across multiple Brazilian states and other previously unaffected Latin American countries . The rapid spread of this lineage underscores its evolutionary potential and reinforces its significance as a public health threat .1 Similar to chikungunya and Zika viruses, expanding arboviruses can exhibit unexpected clinical and epidemiological shifts , including vertical transmissions , neuroinvasive effects, and potentially fatal outcomes.2–4 Although OROV typically causes self-limited febrile illness, accumulating clinical and experimental evidence suggests neurotropic potential .5 This Correspondence describes the first confirmed case of neuroinvasive OROV infection caused by the emergent M1L2S2 lineage in ext...

No evidence of immune #exhaustion after repeated #SARS-CoV-2 #vaccination in vulnerable and healthy populations

Abstract Frequent SARS-CoV-2 vaccination in vulnerable populations has raised concerns that this may contribute to T cell exhaustion , which could negatively affect the quality of immune protection. Herein, we examined the impact of repeated SARS-CoV-2 vaccination on T cell phenotypic and functional exhaustion in frail older adults in long-term care (n = 23), individuals on immunosuppressive drugs (n = 10), and healthy adults (n = 43), in Canada . Spike-specific CD4+ and CD8+ T cell levels did not decline in any cohort following repeated SARS-CoV-2 vaccination, nor did the expression of exhaustion markers on spike-specific or total T cells increase. T cell production of multiple cytokines (i.e. polyfunctionality) in response to the spike protein of SARS-CoV-2 did not decline in any cohort following repeated vaccination. None of the cohorts displayed elevated levels of terminally differentiated T cells following multiple SARS-CoV-2 vaccinations. Thus, repeated SARS-CoV-2 vaccination was...

Chimeric #hemagglutinin and #M2 #mRNA #vaccine for broad #influenza subtype protection

Abstract Since multiple and unpredicted influenza viruses cause seasonal epidemics and even high-risk pandemics , developing a universal influenza vaccine is essential to provide broad protection against various influenza subtypes. Combined with the mRNA lipid nanoparticle-encapsulated (mRNA-LNP) vaccine platform and chimeric immunogen strategy , we developed a novel cocktail mRNA vaccine encoding chimeric HAs (cH5/1-BV, cH7/3) and intact M2 (termed Fluaxe), which confers broad protection against major circulating IAVs and IBVs , as well as highly pathogenic avian influenza . Two-dose intramuscular immunization of Fluaxe in mice elicited cross-reactive neutralizing antibodies , T cell responses, and long-lived immunity, resulting in robust protection against multiple lethal influenza virus infections and severe acute lung injuries . In particular, intramuscular administration stimulated systemic immunity together with a prominent lung tropism of memory cells . Moreover, Fluaxe immuniza...