https://blogs.scientificamerican.com/observations/while-searching-for-the-perfect-vaccine-keep-using-the-very-good/

Disciples of the anti-vaccine movement insist they’re not anti-vaccine. Rather, they say they’re simply advocating for vaccines that are safer and/or more effective than what’s currently available. Sounds reasonable. Who wouldn’t want better vaccines? For that matter, who wouldn’t want safer cars, an untainted food supply and an easier way to vote that didn’t require you to stand in line for hours?

Nevertheless, you’ve probably noticed that people haven’t stopped driving, eating or casting ballots while waiting for these improvements to come along. Women haven’t abandoned their birth control methods while waiting for researchers to develop new ones for their male partners. Most of us use what’s available now, even if imperfect, for two good reasons. They’re all we have, and they meet our basic needs, albeit not perfectly.