Some comparisons between Italy and the UK for Covid-19: March to April 2020

G Sebastiani, J Stander, Borja M Cortina

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Abstract

With the rapid global spread of Covid-19 in recent weeks, many comparisons have been made between the number of cases in different countries. Italy was one of the first in Europe to be badly hit by the pandemic and imposed a full lockdown on 12 March. The effects of Covid-19 were felt later in the UK, with the lockdown coming on 24 March. It is therefore of interest to compare the progress of the disease in Italy to the countries of the UK. To do this we use publicly available data1,2 and statistical models including logistic growth to address the questions, “Is the increase in the number of documented cases of Covid-19 slowing down?” and “How soon do changes follow from lockdowns?”. By documented cases, we mean the number of positive tests recorded as totale_casi in the regional Italian data1 and as ConfirmedCases in the England, Northern Ireland, Scotland and Wales data2 . An easy to understand handle on the spread of an epidemic can be given by the time it takes for the number of cases to double. Although the estimation of these daily doubling times is not straightforward, examining how they change from day to day can provide us with additional insights. We now discuss in detail two statistical models that are widely used in the context of epidemics.
Original languageEnglish
Number of pages0
JournalSignificance: statistics making sense
Volume0
Issue number0
Early online date21 Apr 2020
Publication statusPublished - 21 Apr 2020

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