A collaborative post by Nidhi Parekh of The Shared Microscope and Sheeva Azma of Fancy Comma, LLC.
Counting down the days until there is a COVID-19 vaccine and the novel coronavirus pandemic is over? Nidhi Parekh of The Shared Microscope and Sheeva Azma of Fancy Comma, LLC are here to discuss a front-runner in the race to develop a vaccine for COVID-19. In this post, we talk about the Moderna mRNA vaccine — and help you learn more about how it works and why it is so promising.
The Race to a COVID-19 Vaccine
In the midst of the pandemic, the race to a COVID-19 vaccine is very competitive. Several companies have emerged as leaders in COVID-19 clinical trials, and the first to emerge successful from the clinical trials process could end the COVID-19 pandemic as we know it.
A federal U.S. initiative called Operation Warp Speed is supporting the parallel development of five vaccines from major pharma companies via $13 billion from a combination of the U.S. Congress and the National Institutes of Health:
- Moderna’s mRNA-1273
- AstraZeneca and Oxford University’s AZD1222
- A promising candidate vaccine from Johnson & Johnson
- A Merck vaccine based on their successful Ebola vaccine
- Pfizer and BioNTech’s BNT162
Moderna’s mRNA-1273 is arguably one of the most successful COVID-19 vaccine trials at the moment. Check out its rapid development timeline on the Moderna website. Moderna went from mRNA sequence selection stage to clinical testing in humans in only 42 days!
After promising results on its FDA Phase 2 clinical trials, the Cambridge, MA-based company begins its Phase 3 clinical trials in July, and will be the first company to do so. Phase 3 trials are meant to examine the overall risks and benefits of the drug in humans. If this stage of the trial is successful, the vaccine could be the first in the world to be approved by the FDA to prevent COVID-19 infection and help end the pandemic.
How Do Vaccines Work?
Think of your immune system as your body’s natural antivirus software. Vaccines are a way to update your body’s antivirus software – literally!
Vaccines can be used for viruses such as COVID-19, as well as other pathogens — unwanted foreign invaders — such as bacteria and microorganisms. Our bodies have the ability to develop novel responses against them.
Vaccines work by encouraging the body to create special molecules called antibodies. The purpose of antibodies is to defend our bodies against infection. Antibodies directly interact with the invader or antigen to neutralize and destroy it. By doing so, antibodies help keep us healthy.
What Are Vaccines Normally Made Of?
While all vaccines work the same way — by encouraging the production of antibodies to fend off future infections — Moderna’s mRNA-1273 is different. This is because Moderna’s vaccine uses different material — mRNA of the virus, rather than a weakened or inactivated version of the virus itself — to follow through to the same result. For this reason, it was much faster to develop.
There are several types of conventional vaccines, including live attenuated vaccines, inactivated vaccines, subunit vaccines, and toxoid vaccines. The goal of these vaccines is to introduce a small amount of the virus into the body so that our immune system can attack the virus without us getting sick, so that we develop immunity to the virus.
Vaccine Development Normally Takes Over A Decade — Moderna’s Vaccine Took 42 Days to Develop
Unfortunately, the process of developing these conventional vaccines can be very time-consuming, taking anywhere from 10 to 15 years, and expensive, costing anywhere from $200 million to $1 billion. Check out the illustration below to learn more about the different stages of a vaccine clinical trial.
10 years is a long time, especially in the context of the ongoing pandemic as we work daily to mitigate the spread of COVID-19 through wearing masks, social distancing, and other measures that have impacted our economy.
Thanks to computational screening abilities, Moderna’s vaccine only took 42 days to get from an idea in the lab to clinical testing.
@moderna_tx mRNA #COVID19 #vaccine took 42 days to go from sequence selection to clinical trials. Typical vaccines take much longer — 10+ years — to get to that point. #scicomm @FancyComma
Tweet
How Does Moderna’s COVID-19 Vaccine Work?
In short, the vaccine helps us develop immunity to a small, yet very important, part of the SARS-CoV-2 virus: the spike protein found on the virus’s surface.
Let’s refer to the iconic image of SARS-CoV-2 below to illustrate the SARS-COV-2 spike proteins and why they’re so important in COVID-19 infection. The red spikes on the novel coronavirus molecule are the spike proteins. These spiky proteins allow SARS-CoV-2 RNA to gain entry to our body’s cells. This way, the novel coronavirus enters cells, instructing them to make more of the novel coronavirus. This process is what causes COVID-19 infection.
Moderna’s solution? Help the body develop immunity to the spike proteins. That way, if spike proteins are found in our bodies, they will be broken down by the immune system, and there will be no way for SARS-CoV-2 to enter our cells. Without a way in to our cellular machinery, SARS-CoV-2 cannot replicate, and a COVID-19 infection can not take hold.
The Moderna mRNA Vaccine Contains Instructions for Our Bodies to Create SARS-CoV-2 Spike Proteins
Moderna’s vaccine is unique as it is based on messenger RNA (mRNA), rather than the virus itself. Messenger RNA are cellular “messages” which instruct the body to manufacture proteins.
The mRNA-1273 vaccine contains the mRNA needed to create the spike protein found on the surface of the SARS-CoV-2 virus — the virus that causes COVID-19. In other words, the vaccine contains the genetic code of the spike protein. The spike protein is crucial to SARS-CoV-2, as it helps the virus enter our cells and take over our cellular machinery to produce and assemble more viruses and viral particles.
Once the vaccine is administered, the mRNA instructs our body to produce only the spike proteins. Our bodies produce the spike protein without becoming infected by the virus. Even though these proteins are produced in our bodies, our immune system recognizes them as invaders, or antigens. This is because the spike protein is not normally found in a healthy individual.
With the help of this vaccine, the body is able to learn to identify the spike protein as an invader, and make antibodies to neutralize and then destroy the spike proteins. This is essential to prevent further infection by SARS-CoV-2.
So the answer to the pandemic is antibody production — that is, antibodies produced in response to the SARS-CoV-2 virus.
The idea here is that developing immunity against the spike protein could prevent infection to SARS-CoV-2 even if we are exposed to it, because our body will know how to break down the spike proteins. Without the spike proteins, the virus cannot get into our cells and cause COVID-19 — making us immune to the virus.
Curious about innovative vaccine candidates to defeat the novel #coronavirus? The Moderna vaccine contains the mRNA code for the spike protein found on the surface of the #SARS-CoV-2 virus — the virus that causes #COVID19. @fancycomma
Tweet
The Moderna Vaccine Teaches Our Immune System How to Break Down SARS-CoV-2 Spike Proteins
The Moderna vaccine helps our immune system come up with a “game plan” to break down the novel coronavirus’s spike proteins. Without spike proteins, the SARS-CoV-2 virus cannot enter our cells.
Check out this informative series of infographics from The Shared Microscope:
For more information, check out this video from Moderna which offers a detailed explanation of how mRNA-1273 works:
In summary, the Moderna vaccine serves as a carrier pigeon, delivering our cells the necessary instructions to build the SARS-CoV-2 spike protein, so that we can develop immunity to it and avoid being infected with COVID-19.
@Moderna_tx’s vaccine acts as a carrier pigeon, delivering our cells the needed instructions to build the SARS-CoV-2 spike protein, so we can develop immunity to the novel #coronavirus and avoid #COVID19 infection. @fancycomma
Tweet
The New and Rapidly Growing Field of Nucleic Acid Vaccines
At this early stage of testing, Moderna’s vaccine looks promising, but nobody is sure whether this vaccine will be the one to end the pandemic. However, the use of mRNA in a vaccine is a first, not only for Moderna but for the world.
Moderna’s mRNA-1273 is an example a vaccine that uses nucleic acids such as DNA or mRNA. Nucleic acid vaccines are faster to develop than traditional vaccines because of their reliance on computational modeling of vaccine interactions, which cuts down on the scientific experimentation needed. For this reason, they are cheaper to develop compared to conventional vaccines, and they are cheaper to administer to patients.
Moderna, who has eight mRNA vaccines in the pipeline besides mRNA-1273, discusses several advantages of mRNA vaccines on their website, namely:
- Ability to Mimic Natural Infections: Nucleic acid vaccines, such as Moderna’s mRNA vaccine, can mimic many aspects of natural infections, and could be more effective than conventional vaccines because they evoke stronger immune responses.
- Ability to Include Many Viral mRNA Particles in a Single Vaccine: Many different mRNA corresponding to different viral proteins could be included in a single vaccine. This could be useful to provide many different viral mRNA segments in a single dose, e.g., to reduce the total number of immunizations a person may need, or create antibodies for different aspects of the same pathogen.
- Extremely Rapid Vaccine Development: Computational modeling and design of mRNA antigens is much, much faster in silico (using computer modeling) than in the laboratory. High-throughput screenings can be conducted on a very rapid timescale in the computer lab (e.g., examining the best candidates of a virus’s mRNA to be used in a vaccine). Then, the most theoretically promising candidates can then be tested at the scientific bench.
- Saving Time Saves Money: Cost savings are gained from the efficiency and speed by which such vaccines can be developed, owing to shared manufacturing processes and infrastructure.
Could COVID-19 Bring mRNA Vaccines into the Limelight?
If approved, mRNA-1273 would be the first mRNA vaccine on the market anywhere in the world, and possibly the first COVID-19 vaccine, to boot.
If approved by the FDA, Moderna’s mRNA-1273 would be the first #mRNA #vaccine on the market anywhere in the world, and possibly the first #COVID19 vaccine, to boot. @fancycomma
Tweet
Will Moderna be the victor in the race towards a COVID-19 vaccine? Only time will tell. For now, though, the world is incredibly grateful for all of the institutions out there working towards a vaccine to end the global pandemic and help us move forward and get back to a “new normal” in which it is once again safe to go about our daily lives.
This post is a collaboration with Fancy Comma, LLC. Check out their Twitter, Facebook, LinkedIn, or Instagram for more information, or visit their blog for more insights on effective science writing.
Related posts:
- Written by: admin
- Posted on: June 28, 2020
- Category: COVID-19
0 comments
halitosis cure
July 2, 2020 at 8:01 amThis really answered my problem, thank you!
Nidhi
July 3, 2020 at 11:26 pmThank you for leaving a comment at the end of your read. I hope the blog post helped your understanding. Should you be interested, we have posted a new article on the Oxford Vaccine. Do check it out! Thank you again 🙂
Vita Sangasy
July 23, 2020 at 8:02 pmAs always thank you for great article
ปั้มไลค์
July 26, 2020 at 8:19 pmLike!! Great article post.Really thank you! Really Cool.
Chanelle
July 28, 2020 at 12:15 amHi, I do believe this is a great site. I stumbledupon it 😉 I may revisit once again since I saved as a favorite it. Money and freedom is the greatest way to change, may you be rich and continue to help other people.
more here
July 31, 2020 at 4:45 amWow, this piece of writing is nice, my younger sister is analyzing these things, so I am goingto inform her.
more here
July 31, 2020 at 5:54 amI’m gone to inform my little brother, that he should also visit this website on regular basis to take updated from most recent gossip.
Kory Isles
August 2, 2020 at 1:23 pmHey there! This post couldn’t be written any better! Reading this post reminds me of my old room mate! He always kept talking about this. I will forward this page to him. Fairly certain he will have a good read. Thanks for sharing!
Novavax: A SARS-CoV-2 “Protein Factory” to Beat COVID-19 – The Shared Microscope
August 3, 2020 at 10:47 am[…] Moderna vaccine which uses […]
Vaccine Development: A Chronology – The Shared Microscope
August 3, 2020 at 5:30 pm[…] please do have a look at some of our previous posts. We have previously written posts on the Moderna vaccine, the Oxford/AstraZeneca vaccine, the CoronaVac developed by Sinovac, and the vaccine […]
Ahmed Siderman
August 6, 2020 at 5:16 amEverything is very open with a really clear description of the challenges. It was definitely informative. Your site is very helpful. Thanks for sharing!
Olin Rozeboom
August 6, 2020 at 5:16 amI think the admin of this web page is in fact working hard for his website, because here every data is quality based stuff.
Jovita Poetker
August 6, 2020 at 5:47 amIt’s difficult to find experienced people in this particular subject, but you sound like you know what you’re talking about! Thanks
CoronaVac: A COVID-19 Vaccine Made From Inactivated SARS-CoV-2 Virus – The Shared Microscope
August 19, 2020 at 6:18 pm[…] novel coronavirus are the United Kingdom’s Oxford/AstraZeneca vaccine and the United States’ Moderna […]
Could the Oxford University/AstraZeneca COVID-19 Vaccine End the Pandemic? – The Shared Microscope
August 19, 2020 at 6:21 pm[…] In a previous post, we explained how Moderna is leading the race with its cutting-edge mRNA-based vaccine. This post focuses on a close second: the vaccine currently in development by Oxford University and pharmaceutical giant AstraZeneca. Read on to learn about the origins of the Oxford vaccine, how it works, and why it is expected to be so promising in the global efforts to end the COVID-19 pandemic. […]
Why the Anti-Vax Rhetoric Prevails – The Shared Microscope
September 1, 2020 at 6:59 pm[…] the traditional types of vaccines and more specifically how some of the COVID-19 vaccines (the Moderna vaccine, Oxford University/AstraZeneca Vaccine, the vaccine in development by Sinovac, and the […]
Gregory Scafuto
September 2, 2020 at 5:36 pmIt’s hard to say
Maria Shortell
September 4, 2020 at 7:05 amI agree with you
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing September 07, 2020 – The Shared Microscope
September 13, 2020 at 1:23 am[…] Moderna’s mRNA Vaccine for COVID-19: How Does It Work? […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing September 14, 2020 – The Shared Microscope
September 20, 2020 at 6:45 pm[…] Moderna’s mRNA Vaccine for COVID-19: How Does It Work? […]
Pfizer and BioNTech’s mRNA Vaccine Against COVID-19: How Does It Work? – The Shared Microscope
September 23, 2020 at 2:41 pm[…] German company BioNTech to develop a COVID-19 vaccine in a timely manner. This vaccine, like the Moderna vaccine, the Oxford University/AstraZeneca vaccine, the vaccines in development by Novavax and […]
weight loss
September 29, 2020 at 1:26 pmCan you share more along these lines? It’s been extremely useful for me.
Celebrities
October 2, 2020 at 4:31 amI am very happy to read this. This is the type of manual that needs to be given and not the random misinformation that’s at the other blogs. Appreciate your sharing this best doc.
Travel
October 22, 2020 at 11:19 amThanks for sharing excellent informations. Your website is so cool. I’m impressed by the details that you抳e on this website. It reveals how nicely you perceive this subject. Bookmarked this web page, will come back for more articles. You, my pal, ROCK! I found simply the information I already searched all over the place and simply could not come across. What a great website.
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing December 07, 2020 – The Shared Microscope
December 14, 2020 at 8:37 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing November 30, 2020 – The Shared Microscope
December 14, 2020 at 8:39 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing November 23, 2020 – The Shared Microscope
December 14, 2020 at 8:41 pm[…] 2. The Moderna Vaccine […]
All the Top COVID-19 Vaccines Explained – The Shared Microscope
December 21, 2020 at 8:49 pm[…] is another mRNA vaccine (like the Moderna vaccine) that is in development in […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing December 14, 2020 – The Shared Microscope
December 21, 2020 at 9:08 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing December 21, 2020 – The Shared Microscope
December 28, 2020 at 6:04 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing December 28, 2020 – The Shared Microscope
January 4, 2021 at 7:49 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing January 04, 2020 – The Shared Microscope
January 11, 2021 at 6:55 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing January 11, 2021 – The Shared Microscope
January 18, 2021 at 4:22 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing January 18, 2021 – The Shared Microscope
January 25, 2021 at 8:01 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing January 25, 2021 – The Shared Microscope
February 1, 2021 at 5:48 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing February 01, 2021 – The Shared Microscope
February 8, 2021 at 8:56 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing February 08, 2021 – The Shared Microscope
February 15, 2021 at 7:32 pm[…] 2. The Moderna Vaccine […]
[Newsletter] Round-Up of COVID-19 Vaccine Updates: Week Commencing January 04, 2021 – The Shared Microscope
August 1, 2021 at 10:45 pm[…] 2. The Moderna Vaccine […]