若有遗漏欢迎补充。

台湾

https://www.post.gov.tw/post/internet/W_stamphouse/index.jsp?ID=2803&file_name=D694

中国大陆

http://www.chinapost.com.cn/html1/stamp/2005/528-1.htm

被撤回的原始设计

摩洛哥

http://www.philatelie.ma/webapp/wcs/stores/servlet/Product2_11001_11851_104303_-2_12451_12451_12451_ProductDisplayErrorView

阿曼

https://twitter.com/oman_post/status/1272080129011912704

马恩岛

https://www.bbc.com/news/world-europe-isle-of-man-52449063

瑞士

https://www.post.ch/en/about-us/media/press-releases/2020/solidarity-stamp-proceeds-will-go-to-people-who-need-help-now

伊朗

https://www.post.ir/en-US/PostPortal/1/news/view/26261/161941/Staging/Iran%E2%80%99s-Commemorative-stamp-on-National-Heroes-was-praised-by-the-Universal-Postal-Union

越南

http://www.vnpost.vn/en-US/bai-viet/chi-tiet/id/92289/key/join-hands-in-covid-19-prevention-and-control-stamp-set-unveils-in-vietnam

乌克兰

https://www.facebook.com/272960602750601/posts/3036046303108670

阿联酋

https://www.emiratespostshop.ae/product/covid-19-souvenir-sheet/

新西兰

https://stamps.nzpost.co.nz/new-zealand/2020/teddy-bear-hunt

乌拉圭

https://www.stamps.uy.post/products/plan-nacional-coronavirus-2020

摩纳哥

http://www.oetp-monaco.com/index.php?route=blog/article&path=59&article_id=97

波黑

https://www.posta.ba/portfolio/covid-19/

参考：

[1] https://www.facebook.com/groups/1573840299449286/

[2] https://www.linns.com/news/world-stamps-postal-history/covid-19-stamps-honor-frontline-workers-offer-messages-of-solidarity

[3] https://twitter.com/UPU_UN

原文链接：https://stamp.jinwei.me/2020/06/15/covid-19-stamp/