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. 2022 Feb 1;36(2):267–293. doi: 10.1016/j.idc.2022.01.007

Table 3.

Basic reproductive number (R0) for various pathogens

Pathogen Approximate Basic R0
MERS-CoV91,92 0.7–1.3
Ebola93,94 1.6–2.0
Pandemic influenza 200995 1.8
Pandemic influenza 191896 2.0
SARS-CoV-197 2.2–3.6
Original SARS-CoV-288 3.0
SARS-CoV-2 alpha variant89 4.5
SARS-CoV-2 delta variant89,90 8.0
Measles98,99 10.0–18.0