Abstract: Highly pathogenic avian influenza (HPAI) A(H5N1) viruses continue to cause severe panzootics among wild bird populations and domestic poultry enterprises globally, presenting persistent public health risks through sporadic occupational zoonotic transmission. This investigation evaluates the genomic evolution, receptor-binding domain mutations, and viral shedding dynamics of H5N1 strains circulating across multi-tier commercial poultry farms and backyard holding systems. Utilizing real-time RT-PCR assays, deep sequencing, and spatial epidemiology mapping, our findings reveal accelerated viral reassortment rates within mixed-species live bird markets and poorly bio-secured backyard flocks. Phylogenetic analyses identified novel mammalian-adapting amino acid substitutions in viral polymerase and surface glycoprotein genes, signaling heightened cross-species transmission potential. Furthermore, environmental persistence assays demonstrated extended viral viability in poultry manure and surface runoff water under temperate climatic conditions. We emphasize the critical necessity for enhanced biosecurity compliance, rigorous movement restrictions, and real-time genomic surveillance across the poultry supply chain. Strengthening multidisciplinary One Health monitoring protocols is essential to mitigating pandemic threats.

Abstract: The pervasive accumulation of microplastic debris in coastal estuarine environments has created buoyant artificial ecological niches known as plastispheres, which facilitate the selective colonization, survival, and transport of human and veterinary bacterial pathogens. This study evaluates microplastic abundance, biofilm community composition, and enteric pathogen loads in estuarine water and sediment samples collected across major urbanized coastal bays. Utilizing Fourier-transform infrared (FTIR) spectroscopy and high-throughput 16S rRNA gene sequencing, extracted microplastics demonstrated heavy colonization by *Vibrio*, *Salmonella*, and pathogenic *Escherichia coli* strains. Comparative survival assays indicated that pathogen persistence on microplastic surfaces significantly exceeded that in ambient seawater or suspended particulate matter. Dietary exposure modeling and bivalve tissue assays highlight substantial food safety risks for coastal populations consuming filter-feeding aquaculture species. We advocate for stricter global plastic pollution control policies, the integration of microplastic monitoring into routine seafood safety protocols, and advanced wastewater treatment infrastructure.

Abstract: Anthropogenic climate change, characterized by rising ambient temperatures, mild winters, and altered precipitation regimes, is fundamentally accelerating the phenology, geographical distribution, and questing activity of *Ixodes ricinus* tick vectors, expanding the public health burden of Lyme borreliosis and tick-borne encephalitis. This research constructs advanced ensemble niche models integrating high-resolution meteorological telemetry, normalized difference vegetation index (NDVI) metrics, and wildlife host density distributions to project shifts in transmission risk across Central and Northern European ecosystems. Empirical findings demonstrate that temperature anomalies significantly lengthen the seasonal tick questing window and facilitate a northward latitudinal and altitudinal expansion into previously non-endemic highland zones. Serological screening of sentinel wildlife and domestic animal cohorts confirmed active spirochete circulation in newly colonized regions. The study underscores the urgency for public health authorities to implement climate-resilient vector surveillance, early-warning advisory systems, and targeted public education campaigns.

Abstract: The utilization of treated municipal wastewater and effluent-impacted surface water for agricultural irrigation introduces complex mixtures of veterinary and human pharmaceutical residues, antibiotic-resistant bacteria (ARB), and antimicrobial resistance genes (ARGs) into soil-crop systems. This investigation evaluates the persistence, vertical leaching, and plant root uptake of ARGs (*sul1*, *tetM*, *blaTEM*) across agricultural soils irrigated with treated wastewater over two consecutive growing seasons. Soil cores and harvested vegetable tissues analyzed via quantitative PCR and high-throughput sequencing demonstrated measurable accumulation of target resistance genes in rhizosphere soils and surface tissues of leafy root crops. Soil microbial diversity analyses revealed that chronic irrigation with resistance-laden water significantly alters native microbial community structures, enriching multi-drug resistant bacterial taxa while suppressing beneficial soil health indicators. We advocate for advanced tertiary wastewater treatment standards, improved soil monitoring, and revised agricultural irrigation safety guidelines.

Abstract: Smallholder swine production systems provide essential household economic sustenance across developing agrarian economies but frequently expose farmworkers to high occupational risks of zoonotic pathogen transmission, including swine influenza viruses, hepatitis E, and leptospirosis. This cross-sectional sero-epidemiological investigation evaluates the prevalence of zoonotic infections among 800 smallholder swine producers and assesses their knowledge, attitudes, and practices (KAP) regarding farm biosecurity and personal protective equipment (PPE) utilization. Blood serum samples analyzed via ELISA and hemagglutination inhibition assays revealed cumulative seropositivity rates of 31.2% for swine influenza virus exposure, 40.5% for hepatitis E, and 23.8% for leptospirosis. Structured questionnaires demonstrated that over 78% of participants engaged in manure handling without waterproof PPE, assisted with animal farrowing without gloves, and maintained inadequate separation between housing units and domestic living spaces. We recommend targeted rural extension education and improved on-farm hygiene standards.

Abstract: The intensification of urban heat island (UHI) phenomena driven by rapid urbanization and loss of vegetative cover severely exacerbates physiological heat stress and elevates cardiovascular morbidity and mortality among vulnerable urban populations. This multidisciplinary study integrates thermal infrared remote sensing, microclimate sensor networks, and emergency medical dispatch records to evaluate the spatial distribution of heat-related cardiovascular emergencies during summer heatwave events across major metropolitan centers. Empirical results demonstrate that high-density urban districts lacking vegetative canopy exhibit surface temperatures up to 7.1°C higher than surrounding rural baselines, directly corresponding to clustered spikes in acute myocardial infarction and stroke hospital admissions among elderly and socioeconomically disadvantaged cohorts. Spatial vulnerability mapping identified neighborhoods experiencing disproportionate health burdens due to infrastructural neglect and lack of air-conditioning access. We advocate for municipal policy interventions mandating urban forestry expansion.

Abstract: Climate anomaly-induced weather extremes, including unseasonal precipitation and prolonged storage humidity, have accelerated fungal proliferation and mycotoxin co-occurrence in cereal grains and silage utilized for dairy cattle rations. This toxicological investigation examines the prevalence of aflatoxins, fumonisins, zearalenone, and deoxynivalenol in commercial dairy feed inventories and quantifies the subsequent carryover rates of mycotoxins and their hydroxylated metabolites into raw milk. Feed and milk samples collected from 260 commercial dairy farms were analyzed using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Results confirmed widespread co-occurrence of multiple mycotoxins in stored forage, with detectable levels of aflatoxin M1 exceeding regulatory safety limits in 11% of milk samples derived from herds fed improperly stored silage. Chronic dietary exposure to mycotoxin combinations poses established hepatotoxic and immunotoxic risks to dairy cattle alongside human consumer dietary exposure hazards. The study demonstrates that mycotoxin mitigation requires rigorous pre-harvest crop protection.

Abstract: Canine rabies remains a persistent, fatal viral zoonosis causing tens of thousands of human deaths annually, primarily maintained through transmission cycles within free-roaming domestic dog populations and sylvatic carnivore reservoirs. This study develops a deterministic compartmental SIR mathematical model incorporating spatial heterogeneity and demographic turnover rates to evaluate the effectiveness and cost-efficiency of mass dog vaccination (MDV) campaigns versus targeted wildlife oral rabies vaccination (ORV) strategies. Utilizing field demographic data and vaccination coverage surveys from endemic rural and peri-urban regions, our simulations demonstrate that achieving a sustained vaccination coverage threshold of 70% among free-roaming canine populations successfully interrupts transmission chains within three annual intervention cycles. Sensitivity analyses revealed that human population density and dog turnover rates exert the strongest influence on disease persistence. The study underscores the critical importance of coordinated veterinary vaccination logistics.

Abstract: The widespread accumulation of microplastic particles in agricultural soils resulting from plastic mulching, compost amendments, and atmospheric deposition represents an emerging environmental contaminant threat that alters soil physicochemical properties and subterranean microbial ecology. This experimental study evaluates the structural and functional responses of soil microbiomes and rhizosphere bacterial communities exposed to varying concentrations of polyethylene and polypropylene microplastics over a 150-day crop growth cycle. High-throughput 16S rRNA gene amplicon sequencing and soil enzymatic activity assays demonstrated that microplastic contamination significantly alters soil bulk density, moisture retention capacity, and pH, leading to pronounced shifts in microbial community composition. Specifically, oligotrophic bacterial taxa increased while beneficial plant growth-promoting rhizobacteria (PGPR) and mycorrhizal fungi exhibited suppressed abundances. Furthermore, soil enzyme activities associated with carbon and nitrogen cycling were markedly inhibited in high-plasticity microcosms.

Abstract: The shared interface between protected wildlife reserves and adjacent agro-pastoral livestock farming communities presents persistent epidemiological challenges regarding the interspecies transmission and genetic evolution of foot-and-mouth disease virus (FMDV). This study investigates the spatial contact behaviors, viral shedding patterns, and molecular phylogeny of FMDV strains circulating among African buffalo herds and domestic cattle across national park boundary zones. GPS telemetry tracking combined with viral serotyping, VP1 capsid gene sequencing, and livestock vaccination coverage audits revealed that communal grazing pastures and shared watering points serve as primary transmission conduits. Phylogenetic strain typing confirmed identical viral topotypes circulating in both wildlife and domestic hosts, verifying bidirectional transmission pathways. Economic impact assessments demonstrated severe agricultural trade restrictions resulting from regional outbreaks. We emphasize the necessity for science-based buffer zone management.

Abstract: The intensification of urban heat island (UHI) phenomena combined with urban air pollution synergistically exacerbates physiological heat stress and accelerates respiratory morbidity among vulnerable pediatric populations. This multidisciplinary study integrates thermal remote sensing imagery, particulate matter ($\text{PM}_{2.5}$) sensor networks, and emergency hospital admission records to evaluate the spatial distribution of heat- and pollution-related respiratory illness during summer heatwaves across major metropolitan centers. Empirical results demonstrate that high-density urban districts lacking vegetative canopy exhibit surface temperatures up to 7.0°C higher and pollutant concentrations significantly exceeding WHO guidelines, directly corresponding to clustered spikes in pediatric asthma and acute bronchitis hospitalizations. Spatial vulnerability mapping identified socioeconomically disadvantaged neighborhoods experiencing disproportionate health burdens due to infrastructural neglect and lack of air-conditioning access. We advocate for municipal policy interventions.

Abstract: Soil contamination by toxic heavy metals resulting from industrial effluents, mining operations, and agrochemical misuse poses a severe threat to global agricultural productivity and food safety. This experimental study evaluates the efficacy of phytoremediation utilizing hyperaccumulating plant species inoculated with plant growth-promoting rhizobacteria (PGPR) to enhance the extraction and stabilization of cadmium, lead, and nickel in chronically polluted agricultural soils. Microcosm pot trials and field plot experiments monitored plant biomass production, metal translocation factors, and shifts in soil microbial community structure over two consecutive growing seasons. Inoculation with specialized bacterial strains (*Pseudomonas putida* and *Bacillus subtilis*) significantly enhanced root elongation and phytoextraction efficiency by solubilizing bound metal fractions through organic acid exudation. Metagenomic sequencing revealed complete restoration of beneficial microbial functional diversity following successful contaminant reduction. The research demonstrates that harnessing plant-microbiome synergies provides an ecofriendly technology.

Abstract: Mitigating global antimicrobial resistance (AMR) depends heavily on prudent antibiotic prescription and administration practices among veterinary practitioners across livestock and companion animal sectors. However, clinical decision-making is frequently influenced by complex socioeconomic pressures, client expectations, financial incentives, and perceived disease risks. This cross-national survey analysis examines the behavioral, economic, and institutional determinants of veterinary antibiotic stewardship among 2,400 licensed practitioners across diverse agricultural economies. Structured questionnaires and clinical case vignettes revealed that empirical broad-spectrum antimicrobial prescribing remains widespread, particularly in intensive livestock sectors driven by commercial client pressure and lack of rapid diagnostic tools. Conversely, veterinarians operating under strict national regulatory frameworks and supported by continuous professional education demonstrated high adherence to evidence-based stewardship guidelines. Statistical modeling indicates that financial dependency on pharmaceutical sales and fear of client attrition are primary barriers.

Abstract: Leptospirosis is an emerging global zoonosis maintained primarily by renal carriage in synanthropic and sylvatic mammalian reservoirs, leading to severe public health challenges in rapidly expanding urban centers. This study investigates the molecular epidemiology and strain diversity of pathogenic *Leptospira* species circulating among commensal rodent populations and domestic canines within informal urban settlements, assessing the pathways of environmental contamination and human exposure. Kidney tissue and urine samples collected across diverse socio-environmental zones were analyzed using multi-locus sequence typing (MLST) and real-time PCR assays. Our empirical findings indicate an alarming overall carriage rate of 37.4% among *Rattus norvegicus* populations, with predominant sequence types showing high genetic homology to clinical isolates recovered from human leptospirosis patients in the same neighborhoods. Environmental persistence models demonstrated that prolonged soil saturation and elevated ambient temperatures following seasonal monsoons significantly amplify spirochete survival in surface water pools.