logo
episode-header-image
Oct 2020
33m 12s

How do flu vaccines work?

American Public Media
About this episode

The flu shot changes every year. But why is the flu special, if other illnesses have much longer-lasting vaccines? This episode takes us into the world of viruses and immunity.

We released this episode about flu vaccines last year but we wanted to share it with you again since it’s flu vaccine season but also because vaccines are in the news a lot lately. Scientists are testing a bunch of vaccines for the new coronavirus right now. This episode gets into the details of how vaccines work and how they’re made.

A friendly lymphocyte fills us in on how flu shots work, and science journalist Anna Rothschild shares how vaccines started around the world. We'll hear from some virus-busting detectives to see how scientists solve the case of how to make next year’s flu shot as effective as possible. Author Maryn McKenna will stop by and drop some flu knowledge, too!


Get your ears ready for a good, thumping mystery sound, and a new Moment of Um: how do straws work?


This episode is sponsored by KiwiCo (KiwiCo.com/brainson), Pillsbury Grands Cinnamon Rolls, Guardian Bikes (GuardianBikes.com/brains) and Varsity Tutors (VarsityTutors.com/brainson). You can support the show at brainson.org/donate

See omnystudio.com/listener for privacy information.

Up next
Apr 14
More sport science: bats and black eyes
Sports and science go hand in hand, especially when it comes to softball and baseball. Join Molly and co-host Caris as they answer more of your questions about these two ballgames. Like why are bats measured in ounces? Or why do some players wear black paint under their eyes? Plu ... Show More
25m 25s
Apr 7
Sport science: softballs, baseballs, and curve balls
Baseball and softball are both a feat of physics, from the curve of a pitch to the swing of a bat. Today, we’re exploring the science of these popular pastimes. Join Molly and co-host Kian as they learn about curve balls and the stuff inside a ball. Plus, our listeners share thei ... Show More
27m 13s
Mar 31
Is there such a thing as a blue raspberry? And why are raspberries hairy?
Ever look closely at a raspberry and notice it could use a shave? Those tiny hairs are actually super important. And thankfully totally edible. Join Molly and co-host Zoe-Samarah as they learn all about this fantastic little fruit, and why some raspberry flavored foods are actual ... Show More
26m 32s
Recommended Episodes
Oct 2021
Why is it a shot? Kids’ questions about COVID vaccines
<p>The FDA recently gave emergency use authorization to the Pfizer-BioNTech vaccine for kids age 5 to 11. With all the news and conversation about this development, kids are curious to know more about the Covid vaccine--and vaccines in general! So in this episode we answer questi ... Show More
29m 3s
Dec 2021
Does catching covid give you more immunity than being vaccinated?
Immunity to Covid-19. We've all been hoping to develop it ever since the virus emerged two years ago. Since then, a race to vaccinate the world has begun in earnest, with many countries rolling out booster shots in response to the rise of the Omicron variant. Health officials and ... Show More
8m 58s
Mar 2021
Qu’est-ce qu’un vaccin en spray ?
Qu’est-ce qu’un vaccin en spray ? Merci d’avoir posé la question ! Les vaccins en spray, ou vaccin muqueux sont des vaccins injectés... dans le nez. Pour certaines maladies, ils pourraient être plus efficaces que les vaccins traditionnels. Plusieurs chercheurs espèrent notamment ... Show More
4m 28s
Sep 2021
Ep 959 | Are the Vaccinated Actually the True Super Spreaders? | Guest: Dr. Lynn
Nothing makes sense. “The Delta variant” canard doesn’t explain how the virus is now much worse than ever before when nearly every adult is vaccinated in a lot of areas getting hit hard. Today, we are joined by Dr. Lynn (pseudonym), associate medical director of America’s Frontli ... Show More
1h 13m
Jun 2021
Qu’est-ce que le syndrome du vacciné ?
Qu’est-ce que le syndrome du vacciné ? Merci d’avoir posé la question !   Le 16 juin 2021, le ministère de la Santé a annoncé que plus d’un quart de la population française a été vaccinée contre la Covid-19, soit 17 millions de personnes. Et 46% des Français ont au moins reçu leu ... Show More
4m 56s
Nov 2021
Kids’ Vaccines Tackle COVID-19
What do you need to know about the new COVID-19 vaccines for ages 5 - 11? Sam, age 8, and Natalie, age 10, are here to help! They participated in a COVID vaccine trial, which is an important part of the science that will help end the threat of coronavirus. Along with Dr. Kawsar T ... Show More
18m 26s