Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mobility and the spatially heterogeneous spread of SARS-CoV-2 in Belgium   Given that social interactions drive the spread of infectious diseases
amongst humans, one anticipates that human mobility in Belgium affected the
spread of COVID-19 during both 2020 "waves". Measures against this spread in
turn influenced mobility patterns. In this study, we analyse and mutually
compare time series of COVID-19-related data and mobility data across Belgium's
43 arrondissements (NUTS 3 level). First, we confirm that overall mobility did
in fact change significantly over the consecutive stages of the pandemic. So
doing, we define a quantity that represents the degree of mobility between two
arrondissements: the "connectivity index". Second, we analyse spatio-temporal
COVID-19-related incidence and hospitalisation data using dynamic time warping
and time-lagged cross-correlation. This allows us to quantify time lag and
morphological similarities between localised waves. Third, by coupling those
analyses, we conclude that mobility between arrondissements is in fact
indicative of the spatio-temporal spread of COVID-19 in Belgium, as was
previously shown for other EU countries. This conclusion supports the need for
mobility analysis and/or control during a pandemic, and by extension motivates
the development of our spatially explicit Belgian metapopulation model.

32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
30
The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
19
The categories of this paper are: eess