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COVID-19 epidemiology and rural healthcare: a survey in a Spanish village

Published online by Cambridge University Press:  27 October 2023

Francisco J. Rodríguez-del-Río
Affiliation:
Local Medical Service Horcajo de los Montes, Ciudad Real, Spain
Patricia Barroso*
Affiliation:
Department of Veterinary Sciences, University of Turin, Turin, Italy
Isabel G. Fernández-de-Mera
Affiliation:
Health and Biotechnology Research Group, SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain
José de la Fuente
Affiliation:
Health and Biotechnology Research Group, SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain Department of Veterinary Pathobiology, Center for Veterinary Health Sciences, Oklahoma State University, Stillwater, OK, USA
Christian Gortázar
Affiliation:
Health and Biotechnology Research Group, SaBio Instituto de Investigación en Recursos Cinegéticos IREC (UCLM & CSIC), Ciudad Real, Spain
*
Corresponding author: Patricia Barroso; Email: pbarrososgg@gmail.com
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Abstract

We used primary care data to retrospectively describe the entry, spread, and impact of COVID-19 in a remote rural community and the associated risk factors and challenges faced by the healthcare team. Generalized linear models were fitted to assess the relationship between age, sex, period, risk group status, symptom duration, post-COVID illness, and disease severity. Social network and cluster analyses were also used. The first six cases, including travel events and a social event in town, contributed to early infection spread. About 351 positive cases were recorded and 6% of patients experienced two COVID-19 episodes in the 2.5-year study period. Five space–time case clusters were identified. One case, linked with the social event, was particularly central in its contact network. The duration of disease symptoms was driven by gender, age, and risk factors. The probability of suffering severe disease increased with symptom duration and decreased over time. About 27% and 23% of individuals presented with residual symptoms and post-COVID illness, respectively. The probability of developing a post-COVID illness increased with age and the duration of COVID-associated symptoms. Carefully registered primary care data may help optimize infection prevention and control efforts and upscale local healthcare capacities in vulnerable rural communities.

Information

Type
Original Paper
Creative Commons
Creative Common License - CCCreative Common License - BYCreative Common License - NCCreative Common License - ND
This is an Open Access article, distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives licence (http://creativecommons.org/licenses/by-nc-nd/4.0), which permits non-commercial re-use, distribution, and reproduction in any medium, provided that no alterations are made and the original article is properly cited. The written permission of Cambridge University Press must be obtained prior to any commercial use and/or adaptation of the article.
Copyright
© The Author(s), 2023. Published by Cambridge University Press
Figure 0

Table 1. Data obtained from registered COVID-19 cases in Horcajo de los Montes (Spain) by study period: (a) Gender distribution and mean age in years, (b) Mean number of contacts per case, (c) Number of cases integrating each cluster (members) and the number of contacts per cluster, divided into cluster members and non-members, in five space–time clusters, and (d) Network (size, density, and clustering coefficient) and node (degree and betweenness) metrics of temporal social networks constructed

Figure 1

Figure 1. Space–time clusters of COVID-19 cases identified in Horcajo de los Montes (Spain) between February 2020 and July 2022. Cluster 1 occurred during period 1, probably linked to a social event (burial). Clusters 2 and 3 occurred during period 2, and clusters 4 (in a farm located 25 km from the village) and 5 during period 4. Cluster 2 occurred near cluster 1. Only clusters 4 and 5 had a link as one member of cluster 5 was a contact of one member of cluster 4.

Figure 2

Figure 2. Contact networks of COVID-19 cases in Horcajo de los Montes (Spain), during the four defined periods (1–4). Colour codes indicate members of significant space–time clusters while 0 indicates cases not belonging to specific clusters. Node size is proportional to the degree of each patient. Edges represent known links between patients. The prominent role of case 14 is evident in period 1.

Figure 3

Table 2. Parameters from the best models for the (a) duration of COVID-19 symptoms (days), (b) presence of post-COVID illness, and (c) disease severity in patients from Castilla-La Mancha (Spain) related to age, sex, period, risk group status, and duration of symptoms (log-transformed; in the case of the presence of post-COVID illness). Bold values are those considered statistically significant.

Figure 4

Figure 3. (a) Predicted probability (± confidence interval (CI) 95% represented by the shaded bands) of suffering from severe COVID-19 disease in Horcajo de los Montes, Spain, depending on symptom duration (days). (b) Predicted probability of severe COVID-19 (±95% CI represented by the error bars) depending on the period.

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