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Main COVID vaccines (December 2020)

Covid vaccines

1. INTRODUCTION

According to the World Health Organization, there are currently in development more than 200 vaccines against COVID-19 (december 2020).

Out of these +200, there are +10 in phase 3 (they are being tested in thousands of people) and out of these most developed ones, there are three that are on the fronline for mass-vaccination this year 2021.

 

 

2. MAIN VACCINES AGAINST COVID (december 2020)

  • Oxford-AstraZeneca: US-made COVID-19 vaccine that uses a non-replicative viral vector to trigger the immune response (a virus that is genetically modified to prime the immune system against COVID but has been deactivated so that it cannot replicate).
  • Moderna: US-made COVID-19 vaccine that uses messenger RNA as an immune trigger (mRNA gives direct instructions to our cells, in this case, to create defenses specifically against COVID).
  • Pfizer-BioNTech: German-american COVID-19 vaccine that uses messenger RNA as an immune stimulator (it works the same way than Moderna’s).

 

3. NOTES

  • Not all vaccines are using the same techniques. More than 10 different types of vaccines are being tested: with protein subunits, DNA, inactivated viruses … some even with oral and nasal application (not just injected).
  • I will update the information with new studies / news / advances.

 

4. MORE INFORMATION AND REFERENCES

  • Who.int – World Health Organization Official Website (2020). Draft landscape of COVID-19 candidate vaccines. Avaliable [HERE].
 

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