Bigbgbird's

Hello!

Each month, this Tracker will keep you up-to-date with recent developments in vaccines that aim to prevent Covid infection, last longer, resist variants—or even protect against other coronaviruses. There are already several dozen of these in clinical trials, with more to come.

In an average month, there are new results from a clinical trial, a new trial gets underway, and there is news on progress in a few other ongoing trials. There are preclinical reports, too—a half a dozen or more—and other important developments, like progress on Covid human challenge studies.

This Tracker picks up where my monthly updates at the independent PLOS blog, Absolutely Maybe, left off. You can get an idea of what an update looks like in the final July 2026 update there. Updates for free subscribers at this Tracker will be similar. That includes access to the featured vaccines watchlist—a set of vaccines in advanced development that are making progress.

This Tracker extends that project in several exciting new ways. It is only possible because of reader support, so a big "thank you!" to everyone who is able to help with a paid subscription. As well as enabling the project, you will get access to extra analysis in monthly updates, along with regularly updated overview charts and tracking tracking tables on vaccines in clinical trials, packed with information and analyses.

Having a dedicated website for the project means I can add sections to enhance the information's usefulness to all users. Check out the new background reading area, with links to new explainer pages as well as previous popular posts.

And my online collection of vaccine records—now with over 3,400 entries dating from the start of Covid vaccine development in 2020—remains freely accessible.

Finally, thank you to the community of readers whose enthusiasm for this project have kept me motivated to continue. I hope you like the new and improved Tracker! The first full update will land in late August.

Hilda Bastian

July 29, 2026

*Getting ready to leave, until you let slip about your chastity fetish, and that you even have a cage at home*

*riding your tongue to an earth shattering orgasm after agreeing to play your little chastity game, knowing you won't be cumming for a long long time*

*telling her friends all about the cute boy she met who let her lock his dick up, and is basically her bitch now*

*maintaining perfect eye contact as she slips the cage back on and closes the lock after edging and denying you for the fifth time this month*

*listening faintly amused as you calmly and reasonably explain several excellent reasons as to why you think you should be let out of chastity and allowed to orgasm, knowing that she's going to deny you anyway*