Why don't we have an HIV vaccine?

We had a vaccine for COVID-19 within a year of identifying the virus that causes it, yet still don’t have one for HIV after 40 years of research. Why is that? On this week’s episode, Sam and Deboki cover HIV’s history and spread, how it causes AIDS, and the tiny things it does that have allowed it to evade potential vaccines for decades. Episode transcripts at acs.org/tinymattersSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.