Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Epidemiological study of novel coronavirus (COVID-19)   We report a statistical analysis of some highly infected countries by the
novel coronavirus (COVID-19). The cumulative infected data were fitted with
various growth models (e.g. Logistic equation, Weibull equation and Hill
equation) and obtained the power index of top ten highly infected countries.
The newly infected data were fitted with Gaussian distribution with the peak at
~40 days for the countries whose infection curves are seem to be saturated. The
similarity in growth kinetics of infected people of different countries
provides first-hand guidelines to take proper precautions to minimize human
damage.

18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
19
The categories of this paper are: eess
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph