Table 2.1.

Common viral infections and their basic reproduction numbers.

Viral diseases	Reproduction number (R0)	References
MERS	1.9	[31]
SARS-CoV-2	3.49	[32]
Seasonal flu	1.28	[33]
Swine flu	1.33	[34]
Ebola	1.51	[35]
Zika	4.3	[36]
Nipah	0.48	[37]
SARS	3.5	[38]
HIV	6	[39]
Mumps	6.54	[40]
Small pox	6.87	[41]
Measles	12	[42]
Polio	6	[43]
Spanish flu	2.2	[44]