It's like anti-virus for your WordPress with anti-spam stuff built-in.
As of April 2026, Vaccine is a WordPress spam plugin with 10 active installations and a 0/5 rating0. It has been downloaded 2.0K+ times in total. Requires WordPress 3.1.3+ and PHP false+. Available on WordPress.org since 2011. Last updated 14 years ago — may have compatibility concerns. Top alternative: Akismet Anti-spam: Spam Protection.
It’s like anti-virus for your WordPress with anti-spam stuff built-in.
| WordPress | 3.1.3+ requiredTested up to 3.2.1 |
| PHP | false+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.