Timeline for Why do some vaccines lose their efficacy with time?
Current License: CC BY-SA 4.0
3 events
| when toggle format | what | by | license | comment | |
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| Dec 31, 2020 at 20:21 | comment | added | Roger V. | @user1136 indeed, I presumed the need for "booster" is because of the declining vaccine efficacy (even if it remains quite high). If you have some experise on this subject, please share with us in an answer. | |
| Dec 31, 2020 at 13:25 | comment | added | z1273 | @user1136 Here's a study indicating "antibody responses to tetanus declined with an estimated half-life of 14 years (95% confidence interval, 11-17 years)." | |
| Dec 31, 2020 at 11:03 | history | asked | Roger V. | CC BY-SA 4.0 |