Publications by authors named "Mario I Simoy"

Article Synopsis
  • Hantavirus Pulmonary Syndrome (HPS) has high mortality rates and is significantly prevalent in Northwestern Argentina, due to multiple rodent species acting as virus reservoirs.
  • The study aimed to create a risk map for HPS transmission using ecological niche models (ENM) and analyze the impact of climatic and environmental variables on the infection risk in the region.
  • Results showed that a majority of HPS cases occurred in high-risk areas, with temperature, rainfall, and vegetation being key factors; also, 18% of the local population is at risk, especially near deforested areas.
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To represent the complex individual interactions in the dynamics of disease spread informed by data, the coupling of an epidemiological agent-based model with the ensemble Kalman filter is proposed. The statistical inference of the propagation of a disease by means of ensemble-based data assimilation systems has been studied in previous works. The models used are mostly compartmental models representing the mean field evolution through ordinary differential equations.

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Vector-borne diseases are a serious public health problem, mosquitoes being one of the most important vectors. To analyze the dynamics of this type of disease, Ross-Macdonald models are commonly used. In its simplest formulation and the most common in scientific literature, it is assumed that all mosquitoes are biting at a given rate.

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Introduction: The objective of this cross-sectional study was to describe the main symptoms associated with COVID-19, and their diagnostic characteristics, to aid in the clinical diagnosis.

Methods: An analysis of all patients diagnosed by RT-PCR for SARS-CoV-2 between April and May 2020 in Argentina was conducted. The data includes clinical and demographic information from all subjects at the time of presentation (n=67318, where 12% were positive for SARS-CoV-2).

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Ross-Macdonald models are the building blocks of most vector-borne disease models. Even for the same disease, different authors use different model formulations, but a study of the dynamical consequences of assuming different hypotheses is missing. In this work we present different formulations of the basic Ross-Macdonald model together with a careful discussion of the assumptions behind each model.

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