![Progress of the COVID-19 vaccine effort: viruses, vaccines and variants versus efficacy, effectiveness and escape | Nature Reviews Immunology Progress of the COVID-19 vaccine effort: viruses, vaccines and variants versus efficacy, effectiveness and escape | Nature Reviews Immunology](https://media.springernature.com/full/springer-static/image/art%3A10.1038%2Fs41577-021-00592-1/MediaObjects/41577_2021_592_Fig1_HTML.png)
Progress of the COVID-19 vaccine effort: viruses, vaccines and variants versus efficacy, effectiveness and escape | Nature Reviews Immunology
![Herd immunity – also known as community immunity − is simple: Vaccines protect the people who get them but also anyone those people are near – even those with no immunity – Herd immunity – also known as community immunity − is simple: Vaccines protect the people who get them but also anyone those people are near – even those with no immunity –](https://www.texmed.org/uploadedimages/Current/2016_About_TMA/TMA_Publications/Texas_Medicine/Jan_20_TM_Vaccines.jpg?n=6925)
Herd immunity – also known as community immunity − is simple: Vaccines protect the people who get them but also anyone those people are near – even those with no immunity –
![Dr. David Samadi on X: "It seems that the definition of “herd immunity” has been changed by the World Health Organization to now only include wording that pertains to vaccinations. https://t.co/FZw9FMDVOs" / Dr. David Samadi on X: "It seems that the definition of “herd immunity” has been changed by the World Health Organization to now only include wording that pertains to vaccinations. https://t.co/FZw9FMDVOs" /](https://pbs.twimg.com/media/Ep_8QJXXMAI9I-E.jpg)
Dr. David Samadi on X: "It seems that the definition of “herd immunity” has been changed by the World Health Organization to now only include wording that pertains to vaccinations. https://t.co/FZw9FMDVOs" /
Chatham County Public Health Department NC - We've heard a lot in the last year about herd immunity. Here's what it is, and here's why the COVID-19 vaccine will get us there.
![Influenza and COVID-19 Vaccination Coverage Among Health Care Personnel — United States, 2021–22 | MMWR Influenza and COVID-19 Vaccination Coverage Among Health Care Personnel — United States, 2021–22 | MMWR](https://www.cdc.gov/mmwr/volumes/71/wr/social-media/mm7142a2_COVID19FluVax_IMAGE_21Oct22_1200x675.jpg?_=83012)