Tuesday, April 27, 2021

Should We Have 3 Shots of Covid 19 Vaccine?

Fig 01- A little corner and barn

You may read from many mainstream medias such as CBS, Health and CNBC in these days that we might get 3 shots of Covid 19 vaccines.


Several reasons are:

- immunity will wane over time (several months to a year)
- third shots could increase capability of immunity to fight variants from the united kingdom, South Africa and Brazil.

In fact, there are two kind of vaccines, Biontech-Pfizer and Moderna have been administered in the USA.

I believe many European countries such as United Kingdom, France, Germany and Denmark vaccinated their citizens with Biontech-Pfizer.

Some other countries include “Poland, Romania, Belgium, Greece, the Czech Republic, Bulgaria, Slovakia, Ireland, Lithuania, Slovenia, Latvia, Estonia, Cyprus, Luxembourg and Malta” are using Moderna vaccines (reported by Politico, April 22, 2021).

Fig 02- Green leaves, illustration

Fig 01- Decor beads, illustration.

What are different between two vaccines in term of third shots?

Here are the answers:

1) Biontech- Prizer vaccine (quoted from Pfizer's chief executive)

- immunity will wane about a year
- third shot is needed after 1 year of second shot
- could be re-vaccination annually, like a flu shot.

2) Moderna vaccines (quoted from company's chief executive)

- protection against coronavirus about 6 months
- third shot is available in the Fall
- could be annual shots

However, Dr Anthony Fauci, NIAID director said that possibility to take third shot and annual vaccines will be known after Fall.

So, let’s wait. 


  1. So much is unknown right now. Canada is further behind.

  2. Uy en mi país recién están vacunando a los mayores 80 años y al personal medico es todo un lió. Te mando un beso

  3. wah opsi vaksinnya ada 2 ya kak evi..pfizer dan moderna..masing masing punya kelebihan dan efeknya sendiri sendiri. Mudah mudahan dengan benteng vaksin ini seenggaknya bisa kian menekan laju penularan covid 19.

    stay health selalu kak evi di US

  4. Hi, Evi! I've not heard of 3 Shots of Covid 19 Vaccine. Here in Russia people get only 2 shots.

  5. Notizie molto interessanti sui vari vaccini....speriamo bene!
    Cari saluti,silvia

  6. In Italia è un caos. Stanno utilizzando quasi tutti i vari vaccini disponibili e in certi casi fanno la prima iniezione con il vaccino di una ditta e la seconda con quello di un’altra industria.😭
    Felice giornata, un abbraccio

  7. this news is new to me dear Evi
    we have registered for vaccination ,i think we will be informed about this once we visited there ,i think if it is necessary third shot or yearly shot must be done

  8. I'm still asking myself should I get an annual flu shot? What for? It doesn't prevent me from getting the flu; they just say it will cause the disease to be a mild one.Well with or without the vaccine it's usually nasty.
    The best thing is to work on our immunity from within, and not need an external intervention of vaccines.

  9. Interesting post my dear, thank you for sharing )

  10. En España se están poniendo Pfizer, Moderna, AstraZeneca, Janssen, de la que más dosis de Pfizer. Un beso.

  11. In Italia abbiamo anche Astrazeneca , oltre a Pfizer e Moderna. Lunedì è il mio turno e ci penso un pò. Saluti.

  12. I hope they will OK the third booster shots or an annual one. I will be first in line!

  13. Aquí en Perú están haciendo todo un cóctel de vacunas, Pfizer, Astrazeneca, Sinopharm... uff, son bastantes. Besos 💛

  14. Mientras vemos qué sucede con las vacunas solo nos queda cuidarnos lo más posible.

  15. Thank you very much for your helpful article.

  16. Essential information, Evi. We trust that it will be so. Let's hope...

    A super huggest hug.

  17. Aquí se están poniendo Pfizer, Astrazeneca dependiendo de la edad. Hoy decian en las noticias que la Pfizer necesitarña una 3ª dosis a los 9 meses.
    Buen miércoles Evi. Cuídate.
    Un abrazo.

  18. U mnie nie słyszałam o trzeciej szczepiące, ciekawa informacja. Pozdrawiam serdecznie

  19. useful article. thank you for the amazing share.
    13 by 4 wig

  20. Que interesante lo que compartes. Saludos.

  21. Só o tempo o dirá!
    Um grande beijinho!
    Megy Maia🌺😊🌺

  22. Interesting post. Thanks for sharing those information.

  23. I didn't hear about the third dose. In the Czech Republic, Comirnaty vaccine from Pfizer and BioNTech is also being vaccinated somewhere.

  24. I don't know about other countries but I can tell you that in Italy and Romania the brand most used for this vaccine is Astrazeneca . I had Pfizer because it was the first vaccine available and because I worked in a hospital I was in the first group of people to be vaccinated but now in Italy they are doing mostly Astrazeneca. I also heared that the effect it will last for an year or so.

  25. Thanks for the info! I've gotten my two Pfizer shots, but if I need a third or more down the road, then I'm all for it. Better safe than sorry. :)

  26. I'd take 10 if that prevents the year we just had. I recently got Cansino and am super happy being able to count down the days to immunity. I hope we learn to stay safe, because even with vaccines, there are the other variants that you mentioned.


  27. There are so unknown things and issues on this outbreak. I dont know others but think biontech-Pfizer is perfect. Have healthy days.


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