COVID-19 vaccines and vaccination explained

Videos and podcast

for health workers and the public that address common questions about COVID-19 vaccines or listen to the audio recordings on:

Are you a health worker?

Try the advanced search

Featured

October 21st

Covid-19 and flu vaccinations

Watch the videos →

February 4th

World Cancer Day

Watch the videos →

December 1st

World AIDS Day

Watch the videos →

18-24 November

World Antimicrobial Awareness Week

Watch the videos →

Table of contents

Categories

•

Videos

COVID-19 Infovaccines · Covid-19 vaccines and vaccination explained

Expert opinion series

Disclaimer: The views and comments on this video do not necessarily reflect the views of the WHO CC for Vaccine Safety of C.H.U.S Hospital.

Experts opinion series

Are vaccines against COVID-19 equal or different?

Dr. Paolo Bonanni

2569

Views

•

0

Likes

•

2/5/2021

Add to favorites

Remove from favorites

Experts opinion series

Can you be fully vaccinated against COVID-19 and get infected?

Prof. Sir Andrew J. Pollard

935

Views

•

1

Likes

•

11/10/2021

Add to favorites

Remove from favorites

Experts opinion series

The paradox of vaccination success and opposition to vaccination.

Prof. Dr. Stanley Plotkin

1369

Views

•

4

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Experts opinion series

How does COVID-19 pandemic influenced vaccine value perception?

Prof. Dr. Stanley Plotkin

208

Views

•

0

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Experts opinion series

How can we deal with vaccine hesitancy?

Prof. Dr. Stanley Plotkin

572

Views

•

1

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Experts opinion series

Safety of vaccines: a question of understanding risks and statistics.

Prof. Dr. Stanley Plotkin

472

Views

•

1

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Experts opinion series

Will we need further COVID-19 vaccine doses?

Prof. Dr. Stanley Plotkin

780

Views

•

1

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Experts opinion series

What important lesson should we have learned from this pandemic for future pandemics?

Prof. Dr. Stanley Plotkin

351

Views

•

0

Likes

•

1/11/2021

Add to favorites

Remove from favorites

Próximamente

COVID-19 vaccines and vaccination explained – Introduction

General questions

2:39

min

Vaccines protect against severe COVID-19 disease.

General questions

1:22

min

Why are some vaccinated people also hospitalized with COVID-19?

General questions

0:58

min

How could vaccines be developed at record speed while still maintaining quality and safety?

General questions

2:29

min

What are clinical trials and are they enough to prove a vaccine is safe?

General questions

3:21

min

How do mRNA vaccines, like Pfizer-BioNTech and Moderna COVID-19 vaccines, work?

General questions

2:13

min

How do vector vaccines work?

General questions

0:58

min

How should we respond to claims that the mRNA vaccines could cause a genetic change and that we will see this in the coming decades?

General questions

2:36

min

How do protein-based vaccines work?

General questions

3:44

min

How do I know which COVID-19 vaccine to choose or recommend?

General questions

0:48

min

What tests or examinations should people get before COVID-19 vaccination?

General questions

0:57

min

Can a new variant of the SARS-CoV-2 virus cause more severe disease?

General questions

1:40

min

Why should older adults get vaccinated?

General questions

1:33

min

If COVID-19 becomes endemic will vaccination still be needed?

General questions

1:01

min

Why is it necessary to stay in the healthcare facility 15-30 minutes following COVID-19 vaccination?

General questions

1:42

min

Is it possible to catch COVID-19 during an immunization visit to a healthcare facility?

General questions

1:12

min

What are the so-called COVID-19 bivalent booster vaccines?

General questions

5:07

min

What is the recommended use of updated bivalent COVID-19 booster vaccines?

General questions

2:15

min

How do the updated bivalent COVID-19 vaccines work?

General questions

1:52

min

Who should get a COVID-19 booster dose in fall/winter 2023-2024?

General questions

0:26

min

Why is COVID-19 vaccination no longer offered to healthy adults under 60 in some countries?

General questions

0:19

min

Should children get a COVID-19 booster?

General questions

0:33

min

Is it better to wait to get a COVID-19 vaccine that is adapted to currently circulating variants?

General questions

0:26

min

Who should get COVID-19 vaccination booster doses?

General questions

1:03

min

Can people still get COVID-19 after being vaccinated?

Vaccines and infection

1:31

min

What will happen if the vaccines are no longer effective against the new variants?

Vaccines and infection

2:08

min

How can we ever get back to normal life if the virus mutates faster than scientists can adjust the vaccine?

Vaccines and infection

1:35

min

If a vaccinated or unvaccinated person contracts COVID-19 should they be given antibiotics?

Vaccines and infection

1:05

min

Does vaccination against COVID-19 have any impact on the use of antibiotics to treat COVID-19 complications?

Vaccines and infection

0:57

min

How quickly does the vaccine work and how long does the protection last?

Vaccine efficacy and duration of protection

1:09

min

Will vaccines be able to eliminate or eradicate COVID-19?

Vaccine efficacy and duration of protection

1:11

min

If an individual did not develop high antibody titers after vaccination, should he/she be vaccinated again with another vaccine? Is it safe? What should be an interval between two vaccinations?

Vaccine efficacy and duration of protection

1:09

min

Is a COVID-19 booster shot needed?

Vaccine efficacy and duration of protection

1:24

min

Are COVID-19 vaccines effective against new variants of concern of the SARS-CoV-2 virus?

Vaccine efficacy and duration of protection

4:07

min

Why do immunocompromised people need an additional dose of COVID-19 vaccines?

Vaccine efficacy and duration of protection

1:05

min

Why are some vaccinated people getting sick with COVID-19 and in some cases being hospitalized?

Vaccine efficacy and duration of protection

1:22

min

Why has Omicron been designated a variant of concern, and can it affect people who are already vaccinated?

Vaccine efficacy and duration of protection

2:29

min

Will variant-specific vaccines be needed in the near future?

Vaccine efficacy and duration of protection

1:55

min

Is the immunity that the current COVID-19 vaccines provide waning over time?

Vaccine efficacy and duration of protection

1:47

min

Can COVID-19 vaccines stop transmission of Omicron and its subvariants?

Vaccine efficacy and duration of protection

0:57

min

Can a person receive different vaccines for the first, second and/or booster doses?

Co-administration, dose-interval and interchangeability

1:12

min

Can COVID-19 and influenza (or other) vaccines be administered to a person during the same visit?

Co-administration, dose-interval and interchangeability

1:40

min

Is there a minimum and maximum time interval between COVID-19 vaccine doses?

Co-administration, dose-interval and interchangeability

0:59

min

Who should get the annual flu vaccine?

Co-administration, dose-interval and interchangeability

0:13

min

Is it safe to get a flu vaccine and COVID-19 vaccine on the same day?

Co-administration, dose-interval and interchangeability

0:18

min

How are we going to monitor vaccine safety?

1:54

min

Are adverse effects observed significantly higher following the second dose (or booster doses) as opposed to the first dose for the mRNA vaccines?

1:24

min

Should a person who was previously infected with COVID-19 still be vaccinated?

1:00

min

Can COVID-19 vaccination affect fertility?

1:09

min

Under what circumstances should a COVID-19 vaccine be recalled?

1:53

min

What happens if a serious side effect is reported?

1:52

min

Why children were not initially included in clinical trials?

1:25

min

What do WHO and EMA mean when they say the benefits outweigh the risks of vaccination?

1:04

min

Do mRNA vaccines cause myocarditis as an adverse reaction?

2:45

min

Why have some women experienced changes to their menstrual cycle following COVID-19 vaccination and can this affect fertility?

1:05

min

Can COVID-19 vaccination lead to impotence?

0:56

min

Can COVID-19 vaccination during pregnancy cause birth defects?

1:16

min

Could there be as yet unidentified side effects of the vaccines?

3:09

min

Is there a limit to the number of vaccine doses a person can safely receive?

0:50

min

Is it safe to vaccinate older adults who have chronic medical conditions (such as diabetes or hypertension)?

1:15

min

Can COVID-19 vaccines cause AIDS?

0:59

min

Do the COVID-19 vaccines weaken the immune system?

1:09

min

Why are some countries vaccinating children?

2:12

min

Can people with allergies be vaccinated with mRNA vaccines?

Vaccination recommendations, precautions, or contraindications for special groups

2:07

min

Should a person who experienced an allergic reaction to the 1st dose of COVID-19 vaccine receive a second dose?

Vaccination recommendations, precautions, or contraindications for special groups

1:10

min

Can immunocompromised people be vaccinated?

Vaccination recommendations, precautions, or contraindications for special groups

1:38

min

Is there a maximum age for vaccination?

Vaccination recommendations, precautions, or contraindications for special groups

0:52

min

Can approved COVID-19 vaccines be administered to people with coagulant disorders or chronic treatment with anticoagulants?

Vaccination recommendations, precautions, or contraindications for special groups

1:22

min

When should a woman planning to get pregnant be vaccinated?

Vaccination recommendations, precautions, or contraindications for special groups

0:39

min

Are there any chronic hematological diseases that would be a contraindication for COVID-19 vaccination?

Vaccination recommendations, precautions, or contraindications for special groups

1:48

min

I have had a blood clot in the past or I have a family history of blood clotting. Should I still get vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

2:04

min

I am using a hormonal contraception method (oral contraceptives, subdermal implant, skin patches or vaginal ring): should I discontinue this treatment before or after receiving AstraZeneca vaccines?

Vaccination recommendations, precautions, or contraindications for special groups

0:47

min

Is COVID-19 vaccination safe and recommended for people who have a liver condition?

Vaccination recommendations, precautions, or contraindications for special groups

2:22

min

Is COVID-19 vaccination safe and recommended for people who have chronic liver disease and are immunocompromised (have a weakened immune system)?

Vaccination recommendations, precautions, or contraindications for special groups

1:30

min

Should a person with liver cirrhosis be vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

0:43

min

Should a person who is a candidate for, or who has had, a liver transplant be vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

1:00

min

Does getting a COVID-19 vaccine during pregnancy protect the baby from the virus after delivery?

Vaccination recommendations, precautions, or contraindications for special groups

1:49

min

Does getting a COVID-19 vaccine increase the chance of birth defects?

Vaccination recommendations, precautions, or contraindications for special groups

1:09

min

Does getting a COVID-19 vaccine make it harder to get pregnant or affect fertility treatments?

Vaccination recommendations, precautions, or contraindications for special groups

1:03

min

Does getting a COVID-19 vaccine increase the chance of miscarriage?

Vaccination recommendations, precautions, or contraindications for special groups

0:48

min

Should a woman wait for a certain period to get pregnant after being vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

0:33

min

Does getting a COVID-19 vaccine during pregnancy increase the chance of pregnancy-related problems?

Vaccination recommendations, precautions, or contraindications for special groups

0:57

min

Does getting a COVID-19 vaccine during pregnancy affect the fetus’ future behaviour or learning ability?

Vaccination recommendations, precautions, or contraindications for special groups

0:43

min

Should a breastfeeding woman be vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

1:52

min

Are extra precautions needed while breastfeeding following COVID-19 vaccination?

Vaccination recommendations, precautions, or contraindications for special groups

1:23

min

Can a person with a thyroid condition be vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

1:08

min

Is COVID-19 vaccination safe and recommended for people who have diabetes?

Vaccination recommendations, precautions, or contraindications for special groups

1:13

min

Is COVID-19 vaccination safe and recommended for people who have intellectual and/or developmental disabilities (such as attention deficit disorder)?

Vaccination recommendations, precautions, or contraindications for special groups

1:14

min

Is COVID-19 vaccination safe and recommended for people who have a heart condition?

Vaccination recommendations, precautions, or contraindications for special groups

2:34

min

Is COVID-19 vaccination safe and recommended for people who have chronic disease and are immunocompromised (have a weakened immune system)?

Vaccination recommendations, precautions, or contraindications for special groups

1:24

min

Should a person who is a candidate for, or who has had, a heart transplant be vaccinated against COVID-19?

Vaccination recommendations, precautions, or contraindications for special groups

1:00

min

Who should get a COVID-19 booster dose in fall/winter 2023-2024?

Vaccination recommendations, precautions, or contraindications for special groups

0:26

min

Will at-risk groups be offered annual COVID-19 vaccination as is now the case for to protect against seasonal flu?

Vaccination recommendations, precautions, or contraindications for special groups

0:15

min

What does emergency use authorization mean?

Regulatory approvals

1:22

min

Some COVID-19 vaccines in use have not been approved by WHO. Are they safe and effective?

Regulatory approvals

1:12

min

What adverse reactions are associated with the Pfizer-BioNTech mRNA vaccine?

Comirnaty® – Pfizer-BioNTech vaccine

2:05

min

What adverse reactions are associated with Moderna’s mRNA-1273 vaccine?

mRNA-1273 – Moderna vaccine

2:46

min

How does Vaxzevria, the Oxford-AstraZeneca COVID-19 vaccine work?

Vaxzevria – Oxford-AstraZeneca vaccine

1:44

min

Is Vaxzevria, the Oxford-AstraZeneca vaccine, safe?

Vaxzevria – Oxford-AstraZeneca vaccine

2:54

min

Were there any underlying conditions or risk factors in the individuals who suffered from Thrombosis with Thrombocytopenia Syndrome (TTS) after AstraZeneca (Vaxzevria) vaccination?

Vaxzevria – Oxford-AstraZeneca vaccine

1:40

min

Coming soon