Daily Goal

0/15 min

Dark mode

Resources

Dreaming
Spanish

Watch

Series

Library

Progress

Try Premium

Watch

Series

Premium

Progress

11 comments

Get Premium to join the conversation!

You're trying to watch a premium video.

Vaccines: The Invention That Stopped Epidemics and Saved Millions of Lives

Download video

Vaccines have saved millions of lives! But do you know how they were invented? Agustina tells you the story in this video.

Premium

Published on 2025-06-07

This is an episode from the series Inventions That Saved Humanity.

Switch to series

View comments

441/1146

More videos like this
Next video: How to do proper face cleansing

Autoplay

Skip watched

417

Relative difficulty score from 0 to 100.

7:40

Download video

Add to my list

Mark as watched

The TRUTH about LIVING ALONE

418

Relative difficulty score from 0 to 100.

16:40

Download video

Add to my list

Mark as watched

Spanish Vlog: The Beautiful City of Antigua Guatemala

419

Relative difficulty score from 0 to 100.

32:22

Download video

Add to my list

Mark as watched

How to make a long-distance relationship work

420

Relative difficulty score from 0 to 100.

23:31

Download video

Add to my list

Mark as watched

Signs you’re in a toxic relationship

421

Relative difficulty score from 0 to 100.

31:10

Download video

Add to my list

Mark as watched

Can a relationship survive infidelity?

422

Relative difficulty score from 0 to 100.

18:41

Download video

Add to my list

Mark as watched

Top 10 MOST DANGEROUS airports in the world

423

Relative difficulty score from 0 to 100.

17:46

Download video

Add to my list

Mark as watched

Spanish Vlog: I’m in the Dominican Republic!

424

Relative difficulty score from 0 to 100.

25:18

Download video

Add to my list

Mark as watched

The worst blind date of my life

425

Relative difficulty score from 0 to 100.

20:12

Download video

Add to my list

Mark as watched

I got stranded in Colombia

426

Relative difficulty score from 0 to 100.

26:34

Download video

Add to my list

Mark as watched

I ended up in the roughest part of Mexico City

427

Relative difficulty score from 0 to 100.

4:51

Download video

Add to my list

Mark as watched

The day I stole from a store

428

Relative difficulty score from 0 to 100.

6:21

Download video

Add to my list

Mark as watched

I used a fake ID to get in a party

429

Relative difficulty score from 0 to 100.

5:06

Download video

Add to my list

Mark as watched

I stuck chewing gum on my cousin’s hair

430

Relative difficulty score from 0 to 100.

14:23

Download video

Add to my list

Mark as watched

How I got fluent in Portuguese

431

Relative difficulty score from 0 to 100.

15:43

Download video

Add to my list

Mark as watched

A model agency tried to scam me and called me fat

432

Relative difficulty score from 0 to 100.

27:09

Download video

Add to my list

Mark as watched

The time I went to a trivia TV show… and lost!

433

Relative difficulty score from 0 to 100.

19:31

Download video

Add to my list

Mark as watched

What I Had to Live Through That One Time…

434

Relative difficulty score from 0 to 100.

10:53

Download video

Add to my list

Mark as watched

I didn't want to be an actress

435

Relative difficulty score from 0 to 100.

17:18

Download video

Add to my list

Mark as watched

Can You Believe I Worked at Age 7?

436

Relative difficulty score from 0 to 100.

18:15

Download video

Add to my list

Mark as watched

My favorite teacher made me cry

437

Relative difficulty score from 0 to 100.

16:33

Download video

Add to my list

Mark as watched

A day in Houston following a subscriber’s recommendations!

438

Relative difficulty score from 0 to 100.

25:25

Download video

Add to my list

Mark as watched

How much does Agustina know about the US?

439

Relative difficulty score from 0 to 100.

16:41

Download video

Add to my list

Mark as watched

How much does Agustina know about general culture?

440

Relative difficulty score from 0 to 100.

19:39

Download video

Add to my list

Mark as watched

How much does Agustina know about Pixar movies?

Relative difficulty score from 0 to 100.

13:15

Download video

Vaccines: The Invention That Stopped Epidemics and Saved Millions of Lives

442

Relative difficulty score from 0 to 100.

8:11

Download video

Add to my list

Mark as watched

How to do proper face cleansing

443

Relative difficulty score from 0 to 100.

10:08

Download video

Add to my list

Mark as watched

The Best Facial Care Tips Ep. 1: Why Is Facial Care Important?

444

Relative difficulty score from 0 to 100.

10:34

Download video

Add to my list

Mark as watched

Moisturize your face before doing your makeup

445

Relative difficulty score from 0 to 100.

14:02

Download video

Add to my list

Mark as watched

Epic Rant Battle: No Topic’s off the Table!

446

Relative difficulty score from 0 to 100.

12:49

Download video

Add to my list

Mark as watched

I just want to order breakfast!

447

Relative difficulty score from 0 to 100.

10:54

18+

Download video

Add to my list

Mark as watched

Mexican Drug Cartels Ep. 1: What Is a Drug Cartel?

448

Relative difficulty score from 0 to 100.

5:24

18+

Download video

Add to my list

Mark as watched

The wars between drug cartels

449

Relative difficulty score from 0 to 100.

10:41

18+

Download video

Add to my list

Mark as watched

Life as a member of a drug cartel

450

Relative difficulty score from 0 to 100.

5:52

Download video

Add to my list

Mark as watched

Agustina’s morning routine

451

Relative difficulty score from 0 to 100.

13:44

Download video

Add to my list

Mark as watched

I introduce you to my son

452

Relative difficulty score from 0 to 100.

8:00

Download video

Add to my list

Mark as watched

At a job interview

453

Relative difficulty score from 0 to 100.

4:43

Download video

Add to my list

Mark as watched

Agustina’s Outfit of the Day Ep. 1: Going to the Club

454

Relative difficulty score from 0 to 100.

7:19

Download video

Add to my list

Mark as watched

At a pool party

455

Relative difficulty score from 0 to 100.

7:21

Download video

Add to my list

Mark as watched

The Tinder date masterplan

456

Relative difficulty score from 0 to 100.

13:31

Download video

Add to my list

Mark as watched

Worst cab ride EVER

457

Relative difficulty score from 0 to 100.

8:50

Download video

Add to my list

Mark as watched

10 MUST-HAVE items of every MEXICAN house

458

Relative difficulty score from 0 to 100.

29:31

Download video

Add to my list

Mark as watched

Travel vlog in Italy

459

Relative difficulty score from 0 to 100.

12:39

Download video

Add to my list

Mark as watched

Role play: This restaurant is a nightmare!

460

Relative difficulty score from 0 to 100.

7:10

Download video

Add to my list

Mark as watched

5 Mexican drinks that are better than tequila

461

Relative difficulty score from 0 to 100.

6:27

Download video

Add to my list

Mark as watched

Speaking Spanish with a Colombian kid

462

Relative difficulty score from 0 to 100.

3:40

Download video

Add to my list

Mark as watched

Are beauty contests rigged?

463

Relative difficulty score from 0 to 100.

4:50

Download video

Add to my list

Mark as watched

What do you get for being a Beauty Queen?

464

Relative difficulty score from 0 to 100.

6:22

Download video

Add to my list

Mark as watched

From Nerd to Beauty Queen - All About Beauty Pageants Ep. 1

465

Relative difficulty score from 0 to 100.

11:12

Download video

Add to my list

Mark as watched

Meet Calcetin, Andrea’s old friend

466

Relative difficulty score from 0 to 100.

8:39

Download video

Add to my list

Mark as watched

My go-to hotel breakfast!

467

Relative difficulty score from 0 to 100.

18:56

Download video

Add to my list

Mark as watched

Visiting the ruins of Teotihuacan

468

Relative difficulty score from 0 to 100.

8:09

Download video

Add to my list

Mark as watched

Chichen Itza - A true Wonder of the World

Vaccines: The Invention That Stopped Epidemics and Saved Millions of Lives

441/1146

More videos like thisNext video: How to do proper face cleansing

More videos like this
Next video: How to do proper face cleansing