Herd immunity: What you should know

Summary

Herd immunity describes a situation wherein the presence of a large proportion of immune provides (indirect) protection from infection to susceptibles.

The development of herd immunity is influenced by several factors. This complexity has implications for both mathematical calculations, and planning of interventions.

Where vaccination is the means of developing immunity, herd immunity will develop only if the vaccine also decreases infectiousness (the ability to transmit infection).

Useful Links:

Link to an article on herd immunity in the context of COVID-19:

https://www.jhsph.edu/covid-19/articles/achieving-herd-immunity-with-covid19.html

Link to image explaining herd immunity

Image attribution:

National Institutes of Health (NIH) / Public domain

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.