Effects of Social Distancing Measures during the First Epidemic Wave of Severe Acute Respiratory Syndrome Infection, Greece.
Emerg Infect Dis
; 27(2): 452-462, 2021 02.
Article
in English
| MEDLINE | ID: covidwho-1048927
ABSTRACT
Greece imposed a nationwide lockdown in March 2020 to mitigate transmission of severe acute respiratory syndrome coronavirus 2 during the first epidemic wave. We conducted a survey on age-specific social contact patterns to assess effects of physical distancing measures and used a susceptible-exposed-infectious-recovered model to simulate the epidemic. Because multiple distancing measures were implemented simultaneously, we assessed their overall effects and the contribution of each measure. Before measures were implemented, the estimated basic reproduction number (R0) was 2.38 (95% CI 2.01-2.80). During lockdown, daily contacts decreased by 86.9% and R0 decreased by 81.0% (95% credible interval [CrI] 71.8%-86.0%); each distancing measure decreased R0 by 10%-24%. By April 26, the attack rate in Greece was 0.12% (95% CrI 0.06%-0.26%), one of the lowest in Europe, and the infection fatality ratio was 1.12% (95% CrI 0.55%-2.31%). Multiple social distancing measures contained the first epidemic wave in Greece.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
Quarantine
/
Models, Statistical
/
Disease Transmission, Infectious
/
Physical Distancing
/
COVID-19
Type of study:
Experimental Studies
/
Observational study
Limits:
Adolescent
/
Adult
/
Aged
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
/
Middle aged
Country/Region as subject:
Europa
Language:
English
Journal:
Emerg Infect Dis
Journal subject:
Communicable Diseases
Year:
2021
Document Type:
Article
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