Reproductive Number (R0) | Immunology 🐧

How easy is it for a disease to be passed from one person to another? That's what the reproductive number, R0 (pronounced "R-naught") can tell us. In this video, I will explain what happens when the R0 values are less than, equal to, or greater than 1. Next, I will compare R0 values for many diseases with which you are familiar, and I'll finish by explaining the three factors that determine the value for R0 for any given disease - as well as to describe the challenges that epidemiologists have when calculating it.

Update 11/2021: CDC updated R0 values for COVID-19:
R0 original strain: 2
R0 delta: 5-10

#COVID #R0 #epidemiology

Here's the article by Harry Stevens with the great simulation I talk about in the video: https://www.washingtonpost.com/graphi...

Main resources used for this video:
CDC COVID-19 information: https://www.cdc.gov/coronavirus/2019-...
CDC Epidemiology Training and Resources: https://www.cdc.gov/eis/request-servi...
CDC Historical influenza pandemics: https://www.cdc.gov/flu/pandemic-reso...
WHO COVID-19 information: https://www.who.int/emergencies/disea...
London School of Hygiene and Tropical Medicine: https://www.lshtm.ac.uk/newsevents/ne...

And please let me know what other content you'd like to see as we face this pandemic together:    • Life in the Age of COVID-19  

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