All
Search
Local Search
Images
Videos
Maps
Copilot
More
News
Shopping
Flights
Travel
Notebook
Report an inappropriate content
Please select one of the options below.
Not Relevant
Offensive
Adult
Child Sexual Abuse
Length
All
Short (less than 5 minutes)
Medium (5-20 minutes)
Long (more than 20 minutes)
Date
All
Past 24 hours
Past week
Past month
Past year
Resolution
All
Lower than 360p
360p or higher
480p or higher
720p or higher
1080p or higher
Source
All
Dailymotion
Vimeo
Metacafe
Hulu
VEVO
Myspace
MTV
CBS
Fox
CNN
MSN
Price
All
Free
Paid
Clear filters
SafeSearch:
Moderate
Strict
Moderate (default)
Off
Filter
Jump to key moments of How Does Pfizer Work Against Variants
1:43
From 01:00
How Does It Work?
How does the Pfizer vaccine work to fight COVID-19?
YouTube
CBS 8 San Diego
1:31
From 00:26
How the Vaccine Works
Here is how the Pfizer vaccine works
YouTube
11Alive
2:19
From 00:23
Highly Effective Against Delta Variant
Pfizer, AstraZeneca vaccines, proven effective vs. Delta variant — study
YouTube
UNTV News and Rescue
0:35
From 0:00
Vaccine Vaccine Study
Pfizer vaccine effective against coronavirus variants, study suggests
YouTube
13 ON YOUR SIDE
4:48
From 00:33
How Moderna Works with MRNA
Moderna vs Pfizer: Which COVID-19 vaccine is better? | ABC News
YouTube
ABC News In-depth
4:25
From 00:03
COVID Rates and Evolutionary Variants
New COVID Vaccine and Variants Explained for 2024-25 | UC Davis Health
YouTube
UC Davis Health
8:24
From 06:36
Annual Boosters and Variants
Covid-19 vaccines: Moderna vs. Pfizer vs. Johnson & Johnson comparison
YouTube
syracuse.com
3:47
From 00:13
Assessing and Adapting to New Variants
Pfizer-BioNTech vaccine lead: Boosters could be every 12 or 18 months
YouTube
CNBC International Live
0:33
Pfizer Covid vaccine ‘works against mutant strains’, research shows
37.8K views
Jan 8, 2021
YouTube
The Independent
22:06
Pfizer COVID 19 FDA Authorized Pill "Paxlovid" Explained
2.1M views
Dec 30, 2021
YouTube
MedCram - Medical Lectures Explained CLEAR…
2:19
Pfizer, AstraZeneca vaccines, proven effective vs. Delta variant
…
24.4K views
Jul 22, 2021
YouTube
UNTV News and Rescue
4:25
New COVID Vaccine and Variants Explained for 2024-25 | UC Davis
…
48.2K views
Aug 23, 2024
YouTube
UC Davis Health
8:24
Covid-19 vaccines: Moderna vs. Pfizer vs. Johnson & Johnson co
…
317.3K views
Mar 18, 2021
YouTube
syracuse.com
4:43
The New COVID-19 Shot Is Surprisingly Effective Against the
…
Feb 1, 2024
TIME
Alice Park
0:44
Pfizer vaccine explained
36.8K views
Dec 4, 2020
YouTube
Associated Press
2:43
Experts now say impacts of COVID-19 stretch well beyond initial illness
Sep 24, 2024
CBC
3:19
RNA Vaccines (mRNA Vaccine) - Basis of Pfizer and Moderna COVI
…
1.3M views
Nov 18, 2020
YouTube
Alila Medical Media
6:48
mRNA vaccines, explained
3M views
Feb 2, 2021
YouTube
Vox
2:19
New Covid vaccine study links jab to heart and brain conditions | WI
…
477K views
Feb 22, 2024
YouTube
WION
30:03
Does the Pfizer Vaccine Stop Transmission?
183.2K views
Oct 17, 2022
YouTube
MedCram - Medical Lectures Explained CLEAR…
14:40
Coronavirus Update 117: Moderna vs. Pfizer COVID 19 Vaccine (mRN
…
1.8M views
Nov 17, 2020
YouTube
MedCram - Medical Lectures Explained CLEAR…
4:33
What SARS-CoV-2 Variant Will Be in 2024-2025 COVID-19 Vaccines?
5.2K views
Jul 9, 2024
YouTube
The Children's Hospital of Philadelphia
2:10
Updated COVID shots recommended as new variant surg
…
11.6K views
5 months ago
YouTube
CBC News: The National
2:01
Pfizer's COVID-19 Vaccine Highly Effective: Study
543.5K views
Apr 2, 2021
YouTube
NBC Bay Area
Fact Check: Preventing transmission never required for C
…
Feb 12, 2024
reuters.com
Vaccine advisers to the FDA recommended changes to COVID
…
6 months ago
npr.org
4:33
COVID vaccines, RSV, and whooping cough: What to know
Oct 4, 2024
TODAY.com
Shiv Sudhakar, MD
2:28
How do mRNA COVID-19 vaccines work?
420.6K views
Mar 10, 2021
YouTube
PBS NewsHour
13:31
How the Pfizer-BioNTech COVID-19 vaccine was developed
881K views
Dec 21, 2020
YouTube
60 Minutes
4:48
Moderna vs Pfizer: Which COVID-19 vaccine is better? | ABC News
236.2K views
Sep 7, 2021
YouTube
ABC News In-depth
3:46
FDA picks a new strain for fall Covid vaccines. Here's what it means fo
…
6 months ago
NBC News
Berkeley Lovelace Jr.
0:51
AstraZeneca, Pfizer shots beat Delta virus: study
15.6K views
Jun 24, 2021
YouTube
The Star
2:49
Covid-19 Delta variant: Does vaccine work against it? Are boos
…
298.7K views
Jul 14, 2021
YouTube
syracuse.com
3:29
Top 8 Vaccines for Covid-19 | Comparison
3.3M views
Apr 29, 2021
YouTube
Hussain Biology
22:32
Coronavirus Update 116: Pfizer COVID 19 Vaccine Explained (Bion
…
698K views
Nov 12, 2020
YouTube
MedCram - Medical Lectures Explained CLEAR…
14:12
Coronavirus Update 118: AstraZeneca DNA COVID 19 Vacci
…
3.8M views
Nov 24, 2020
YouTube
MedCram - Medical Lectures Explained CLEAR…
12:06
How effective are vaccinations against the new COVID variants?
…
453.5K views
Jul 7, 2021
YouTube
DW News
1:01:57
CDC’s Recommendations for Pfizer-BioNTech COVID-19 Vaccine Child
…
117.4K views
Dec 15, 2021
YouTube
Centers for Disease Control and Prevention (C…
See more videos
More like this
Feedback