File:WHO EN Herd Immunity Illustration 02 8Dec2020.png

Original file ‎(3,200 × 3,200 pixels, file size: 453 KB, MIME type: image/png)

This file is from a shared repository and may be used by other projects. The description on its file description page there is shown below.

Wikipedia does not have a File page with this exact name.

Other reasons this message may be displayed:

If an image was recently created here, it may not be visible yet because of a delay in updating the database; wait a few minutes or try the purge function.
Titles on Wikipedia are case sensitive except for the first character; please check alternative capitalizations and consider adding a redirect here to the correct title.
If the page has been deleted, check the deletion log, and see Why was the page I created deleted?

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Thumbnail	Dimensions	User	Comment
current	00:08, 31 August 2022		3,200 × 3,200 (453 KB)	Smasongarrison	Cropped 20 % horizontally, 20 % vertically using CropTool with lossless mode.

The following file is a duplicate of this file (more details):

The following page uses this file:

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Author	A Reid
Image title	How do vaccines work? Herd immunity
File change date and time	00:07, 31 August 2022