How deadly is COVID-19 and how fast does it spread?
10%
20%
30%
40%
50%
60%
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Estimated range
for COVID-19
spreads faster →
(reproduction number)
Spanish flu 1918
Other flu pandemics
& seasonal flu
SARS
SARS
MERS
MERS
Measles
Measles
Ebola
Ebola
Bird flu
Bird flu
% who die
Sources: World Health Organisation, Centers for Disease Control and Prevention, National Institutes of Health, National Health Service, BMC Infectious Diseases
