💥UPSC 2026, 2027 UAP Mentorship - June Batch Starts

Q.3) What are the different types of vaccines developed for the Covid-19 in the world? Explain the working of mRNA vaccines. (10 marks)

“Mentor’s Comments”

  • In the intro mention how Covid-19 has brought into focus the importance of vaccines.
  • In the body, mention four types of vaccines such as whole virus vaccine, viral vector vaccines, protein subunit and mRNA vaccine. In the next part, explain the working of mRNA vaccines and how it is different from the other types of vaccines.
  • Conclude by mentioning the important role played by the vaccines in dealing with the Covid-19 pandemic.

Comments

39 responses to “Q.3) What are the different types of vaccines developed for the Covid-19 in the world? Explain the working of mRNA vaccines. (10 marks)”

  1. sanvi sanjay Avatar
    sanvi sanjay

    @swatantra sir

    1. Swatantra Avatar
      Swatantra

      Sanvi

      Write in 2 pages like UPSC papers. You are missing out the key points.

      Explain in one line about the 4 different types of vaccines you have mentioned. Also give examples of each type. This is a pretty straightforward question, so write these things as basic things everyone will write.

      Also you can make a diagram of working of mRNA vaccine. Your presentation is good but your content is insufficient in this answer.

      Keep writing. Keep improving. 🙂

  2. subhashree mallick Avatar
    subhashree mallick

    pay_HH1EGxOD3EGEhl

    1. subhashree mallick Avatar
      subhashree mallick

      pls review @swatantra sir

    2. subhashree mallick Avatar
      subhashree mallick

      pls review sir i was facing problm while uploading sorry for multiple reply

    3. Swatantra Avatar
      Swatantra

      Subhashree

      This is a pretty straight forward question, you have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working , use tables for comparison if possible. Give examples from current vaccines, it is important.

      Also, define what is mRNA. Also you have skipped whole virus vaccines and its types such as inactivated vaccine, live attenuated vaccine. Mention about them.

      Introduction and conclusion is ok, you need to present better in such questions as everyone will have the content.

      Keep practicing. 🙂

  3. Gauri Shankar Meena Avatar
    Gauri Shankar Meena

    Payment Id pay_HHlJ1R1WIIMdGT

    1. Swatantra Avatar
      Swatantra

      Gauri Shankar,

      You have addressed the core demands but presentation can be better, briefly define other vaccine also in one line each, it will give clarity on how mRNA vaccines are different.

      Also give examples of different vaccines. Try to make tables for comparison if possible. Mention that mRNA is a novel idea and how it will help in producing spike proteins in the body.

      This is a very straight forward question, content will be not an issue for most people so try to present better.

      Keep writing.

  4. Anupam Singh Avatar
    Anupam Singh

    Refid #422544

    1. Swatantra Avatar
      Swatantra

      Anupam

      Good answer, you have used diagrams and examples, that is very good. Write about sub unit vaccines also.

      You can make table to show differences if possible.

      Also briefly define what is mRNA, mention spike proteins.

      You are doing well. Keep writing.

  5. Kartikey Singh Avatar
    Kartikey Singh

    pay_HHogiMPYpQ87sC

    1. Swatantra Avatar
      Swatantra

      Kartikey

      Good answer, you have written examples that is very good.

      You can also draw simple diagrams to show the working of mRNA vaccines and also mention that in case of Covid, spike protein is produced in the body with help of mRNA vaccine.

      This is a very straight forward question, content will be not an issue for most people so try to present better.

      Keep writing. 🙂

  6. Sana Nawazish Avatar
    Sana Nawazish

    ID-HJjQFLvck5DhqQ
    Please review

    1. Swatantra Avatar
      Swatantra

      Sana

      Don’t write so much in introduction, it gets repetitive and lengthens the answer unnecessarily. This is a pretty straight forward question, you have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working. Give examples of different types of vaccines.

      Also, you can mention some advantages of mRNA vaccine such as safe, highly efficient and are fully synthetic (don’t require a host for growth). In conclusion, you can write statements, no need to write in points.

  7. Harshaa Sharma Avatar
    Harshaa Sharma

    Idpay_HJ2s89guguFYwg@saatantra

    1. Swatantra Avatar
      Swatantra

      Harshaa

      You have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working step by step. Give examples of different types of vaccines which we see today.

      You have written the first part in some detail, that is good. However, working of mRNA vaccine is also an important part of the question, so a diagram will add immense value, also define mRNA and mention about spike proteins in brief.

      Keep writing. Read some of the other answers too. 🙂

  8. Arpit Singh Avatar
    Arpit Singh

    Payment id HHU8LODcXby9Db

    1. Swatantra Avatar
      Swatantra

      Arpit

      Very well -written, good that you drew diagram.

      Mention about sub-unit vaccine too (Novovax). Also, you can mention some advantages of mRNA vaccine such as safe, highly efficient and are fully synthetic (don’t require a host for growth).

      You are doing well. Keep writing 🙂

  9. ankita thakur Avatar
    ankita thakur

    Payment id-HJHAZEWKSzM3CX

    1. Swatantra Avatar
      Swatantra

      Ankita

      You have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working step by step. Give examples of some mRNA vaccines.

      Also mention inactivated virus vaccine in types of vaccine. Covaxin is based on this principle.

      Explanation of mRNA vaccines is good. You can mention some of its advantages such as safe, highly efficient and fully synthetic (don’t require a host for growth).

      Diagram will add immense value in such questions. Keep writing. 🙂

  10. Fun Learning with Rajlaxmi. Avatar
    Fun Learning with Rajlaxmi.

    Review
    Ref no 0000420120

    1. Swatantra Avatar
      Swatantra

      Rajlaxmi

      In whole virus, mention different types- inactivated, live attenuated. In viral vector vaccine, mention that we use different virus as vector e.g adenovirus etc

      You drew a diagram, that is very good. Also mRNA explanation is good. Define mRNA briefly when you start writing about it. Mention some of its advantages such as safe, highly efficient and fully synthetic (don’t require a host for growth).

      Keep writing. Read some of the other answers too. 🙂

  11. AABHA RANI Avatar
    AABHA RANI

    Razor payment id:- HHOoNABVzCCLcD

    1. Swatantra Avatar
      Swatantra

      Aabha

      This is a pretty straight forward question, you have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working , give examples- pfizer, moderna etc. Explanation is good.

      You can mention some of its advantages such as safe, highly efficient and fully synthetic (don’t require a host for growth).

      Diagram will add immense value in such questions. Keep writing. 🙂

  12. Dr. House Avatar
    Dr. House

    REF ID: #0000425733
    Please review @Swatantra Sir

    1. Swatantra Avatar
      Swatantra

      Dr House

      Whole virus vaccines are of two types- inactivated(in which virus is fully killed) and live but attenuated vaccine (in this virus is just weakened), Covaxin is inactivated one, I think you can correct that in the 1st point you mentioned.

      In mRNA part, start with writing what do you understand by mRNA. Good that you drew a diagram. You can mention some of its advantages such as safe, highly efficient and fully synthetic (don’t require a host for growth).

      Rest of the answer is good, well-presented also. Keep writing. 🙂

      4.5/10

  13. Rohan Sinha Avatar
    Rohan Sinha

    Order number #0000420396
    @swatantra

    1. Swatantra Avatar
      Swatantra

      Rohan

      Briefly mention how each type of vaccines work in 1 line each.

      mRNA part is well written but diagram is missing, diagram will add immense value in such question, at least make a flowchart showing the steps in the working.

      Introduction,conclusion are good.

      Read some other answers.Keep writing. 🙂

  14. shivanshu pandey Avatar
    shivanshu pandey

    pay_HH4AoVE2qPd386 please review

    1. Swatantra Avatar
      Swatantra

      Shivanshu

      This is a pretty straight forward question, you have attempted well, but presentation could be better. Make simple diagrams for mRNA vaccine working , at least make a flowchart showing steps in its working. Also, define what is mRNA.

      You have skipped whole virus vaccines and its types such as inactivated vaccine, live attenuated vaccine while writing vaccine types. Mention them and briefly define each of these types in one line.

      Introduction, examples and conclusion are good, you need to present better in such questions as everyone will have the content.

      Keep writing. 🙂

  15. Mradul sharma Avatar
    Mradul sharma

    id- #0000422539

    1. Swatantra Avatar
      Swatantra

      Mradul

      Well-written answer but briefly write what do you understand by mRNA. Also, some of the advantages of mRNA vaccines such as safe, highly efficient and fully synthetic (don’t require a host for growth) can be mentioned.

      Diagram is excellent, presentation is also good. You should get good marks for such answers.

      Keep writing. 🙂

  16. SUMITA DOWERAH Avatar
    SUMITA DOWERAH

    Payment Id: pay HFrdyJMOEZ9967. Please review, @Swatantra Sir.

    1. Swatantra Avatar
      Swatantra

      Sumita

      You have attempted well, however, presentation can be better. Explain in 1 line about the vaccines in starting only where you have mentioned types. Also give examples.

      Working of mRNA you have explained well, but you can make a diagram. You will have to write less, also it will give you extra marks. And then you can mention the advantages of mRNA over others in a combined way and then conclude.

      You need to present better in such questions as everyone will have the content.

      Keep writing. 🙂

  17. Vivek H Avatar
    Vivek H

    Payment Id : 115213946268

    1. Swatantra Avatar
      Swatantra

      Vivek

      You have attempted well, however, presentation can be better. Explain in 1 line about the vaccines in starting only where you have mentioned types.

      Also try to make a diagram in such questions. You can make a diagram showing the steps of working of mRNA vaccines. Also what do you understand by mRNA term, mention that.

      You will have to present very well in such questions to get extra marks, as everyone will have the content, pretty straight forward question.

      Read some other answers.

      Keep writing.:)

      3.5/10

  18. Vishnu Agrawal Avatar
    Vishnu Agrawal

    Order id: 0000422561
    @swatantra sir please review. Sorry for late uploading.

    1. Swatantra Avatar
      Swatantra

      Vishnu

      Try to upload on the same day, otherwise in future review might be delayed. You have uploaded all answers in one go I think.

      You have written well in this answer. You can give recent examples of Covid vaccines in different vaccine categories.

      Also you drew a diagram, that is very good, try to make it more neat and clean with proper labeling. Also explain what is mRNA first before writing its working, also you should write examples like Pfizer, Moderna etc and give some advantages such as safe, highly efficient and fully synthetic (don’t require a host for growth).

      Rest of the explanations are good. Keep writing. 🙂

      4.5/10

    2. Vishnu Agrawal Avatar
      Vishnu Agrawal

      I am working right now, it is becoming difficult for me, to write and upload on the same day. From next week onwards, I will write answers on the same day. Thanks a lot for such comprehensive review sir.

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