Spatial scales, patterns, and positivity trends of SARS-CoV-2 pandemics in mass rapid antigen testing in Slovakia

We study geographical epidemic scales and patterns and positivity trends of SARS-CoV-2 pandemics in mass antigen testing in Slovakia in 2020. The observed test positivity was exponentially distributed with a long scale exponential spatial trend, and its characteristic correlation length was approxim...

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Bibliographic Details
Published in:PloS one 2021-08, Vol.16 (8), p.e0256669-e0256669
Main Authors: BoÄová, Katarína, Kollár, Richard
Format: Article
Language:English
Subjects:
Analysis
Antigens
Biology and life sciences
Biosensors
Data analysis
Datasets
Earth Sciences
Epidemics
Evaluation
Geospatial data
Informatics
Medical tests
Medicine and Health Sciences
Municipalities
Pandemics
People and places
Physical Sciences
Reversion
Severe acute respiratory syndrome
Severe acute respiratory syndrome coronavirus 2
Software
Trends
Viral diseases
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Summary:We study geographical epidemic scales and patterns and positivity trends of SARS-CoV-2 pandemics in mass antigen testing in Slovakia in 2020. The observed test positivity was exponentially distributed with a long scale exponential spatial trend, and its characteristic correlation length was approximately 10 km. Spatial scales also play an important role in test positivity reduction between two consecutive testing rounds. While test positivity decreased in all counties, it increased in individual municipalities with low test positivity in the earlier testing round in a way statistically different from a mean-reversion process. Also, non-residents testing influences the mass testing results as test positivity of non-residents was higher than of residents when testing was offered only in municipalities with the highest positivity in previous rounds. Our results provide direct guidance for pandemic geographical data surveillance and epidemic response management.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0256669