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Moderna Vs Pfizer vaccines

Published on Apr 14, 2021   -  5 min read


The Pfizer and Moderna vaccines are messenger RNA that makes the surface protein sit on the SARS-2 virus. Please read the article to know how Pfizer and Moderna help to fight the infectious Coronavirus as these two vaccines have been authorized by the FDA.



The Pfizer and Moderna vaccines are messenger RNA that delivers a bit of genetic code to cells. Each COVID-19 vaccine is unique, and all of them may help with the spread of the disease. Moderna and Pfizer vaccines received emergency use authorization (EUA) from the Food and Drug Administration (FDA) for COVID-19 and are currently being administered in the U.S. The vaccines are based on the pre-existing immunity proportion of individuals as a result of previous infection or vaccination. People will likely not be able to choose which vaccine to get with. This article will be helpful to know how each of them are different.

Records of Vaccination:

The vaccination provider includes the vaccination details in the local jurisdiction’s Immunization Information System (IIS) or other designated systems. This will help you to receive the same vaccine when you return for the second dose.

The Moderna COVID-19 (mRNA-1273) Vaccine:

Moderna vaccine was the second one authorized for emergency use in the U.S. on December 18, 2020. The Moderna COVID-19 Vaccine prevents Coronavirus disease 2019 (COVID-19) caused by SARS-CoV-2. The SAGE or Strategic Advisory Group of Experts, the group that advises WHO on Immunization, has approved the Moderna vaccine against COVID-19 patients. Moderna is proud to be among the many leading groups, and it works to respond to infectious disease and continues as a global health emergency.

Ingredients in Moderna Vaccine:

The Moderna COVID-19 Vaccine contains the following ingredients:

Moderna Recommended For:

It should be used in people above 18 years of age, though the company is now testing its vaccine in 12 to 17-year-olds and children aged 6 months to 12 years.

Moderna Dosage:

The WHO Strategic Advisory Group of Experts recommends the use of the Moderna mRNA-1273 vaccine at a schedule of two doses with a 28 days period of interval. The interval between the doses may also be extended to 42 days. If you receive one dose of the Moderna COVID-19 Vaccine, the same product should be used for both doses a month later to complete the vaccination series. Moderna has a much larger dose of vaccine, 100 micrograms. The company is using a little more than three times the dosage of vaccine per person. The government’s vaccine development program has asked Moderna to test if it could lower its vaccine dosage without eroding the vaccine’s protection.

Moderna the Safe Vaccine:

Moderna has been authorized to use across the European Union as the EMA has thoroughly gone through the quality, safety, and efficacy of the Moderna COVID-19 vaccine. The WHO Strategic Advisory Group of Experts recommends observing all the vaccines for at least 15 minutes after vaccination because people who experience an immediate severe allergic reaction to the first dose should not receive additional doses. Longer-term safety assessment involves prolonged monitoring of the participants, uninterrupted supervision of resulting effects or negative effects of those being vaccinated in the rollout. The Global Advisory Committee on Vaccine Safety provides independent and authoritative guides to the WHO on risk-free vaccine use, obtains and evaluates reports of alleged safety events.

Moderna Efficacy:

The Moderna vaccine has been shown to work efficiently, commencing 14 days after the first dose with approximately 92 percent to shelter from COVID-19. After the second dose, the Moderna vaccine was 94.1% effective at preventing symptomatic Covid-19. People of 65 years and above are noted to have a slightly lower vaccine efficacy. In December, the company explained the numbers influenced by the fact, and there were few cases in that age group in the trial during a presentation to the Food and Drug Administration’s advisory committee. The vaccine became equally effective across different ethnic and racial groups.

Transmission and New Variants:

There is no much-provided information that the vaccine will prevent and protect against infection and transmission, but the immunity persists for several months. Simultaneously, we should maintain public health measures, such as masking, physical distancing, handwashing, respiratory and cough hygiene, avoiding crowds, and ensuring good ventilation. The latest embodiment B.1.1.7 and the 501Y.V2 of SARS-CoV-2 fail to amend the Moderna mRNA vaccine's effectiveness. Researchers are monitoring, collecting, and analyzing data on new variants and undergoing the analysis of COVID-19 diagnostics, treatments, and vaccines.

Storage Requirements:

The mRNA vaccines require a cold chain, which is used to describe the conditions under which vaccines must be stored during distribution. The Moderna vaccine can be shipped and kept in long-term storage, which makes it easier to distribute and store. Moderna must be shipped at -4 degrees Fahrenheit, which is within a regular refrigerator freezer's temperature. Moderna is stable for 30 days at fridge temperature and for 12 hours at room temperature.

Side Effects of Moderna Vaccine:

The Moderna COVID-19 Vaccine causes severe allergic reactions, and it can occur within a few minutes to one hour after getting a dose. So the vaccination provider will ask you to stay for monitoring after vaccination. It can also be associated with a bad rash all over your body, fever, dizziness, weakness, injection site reactions, such as pain, tenderness, swelling of the lymph nodes in the arm of the injection, swelling, redness, fatigue, headache, muscle pain, chills.

The Pfizer-BioNTech COVID-19 Vaccine:

On December 11, 2020, the company gave positive data, which included that the vaccine was 95% effective. The Food and Drug Administration gave the first emergency use authorization (EUA) for the Pfizer vaccine. Pfizer vaccines safeguard from the coronavirus disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). It is given to individuals above 16 years of age.

Ingredients in Pfizer-BioNTech Vaccine:

Pfizer Recommended For:

The Pfizer vaccine has been given permission for use for people 16 years of age and older. Phase 3 study has shown that Pfizer prevented symptomatic diseases in the age group of 12 to 15 years. Now the company is testing children of 6 months old.

Pfizer Dosage:

Pfizer vaccines require two shots, a priming dose, and a booster dose. The interval in Pfizer is 21 days. Pfizer contains 30 micrograms in each dose.

Pfizer Efficacy:

The Pfizer vaccine has an efficacy of 95% at preventing Covid infection after two doses. The vaccine is highly protective against age groups and races. Pfizer started counting cases from seven days of the second dose of vaccine.

Storage Requirements:

It is stored in ultracold containers at -94 degrees Fahrenheit. Recently FDA announced that this vaccine could be shipped and stored for a two weeks period only.

Side Effects of Pfizer Vaccine:

The side effects ofPfizer are fever, allergic reactions on the site of injection, chills, headache, pain, tiredness, joint pain, joint pain, chills, nausea, vomiting, difficulty in breathing, rashes, and tenderness.


Vaccination helps to prevent diseases in individuals in terms of morbidity and mortality. Vaccinating symbolizes ample healthcare benefits and helps to meet the need for care for the weakest members of society. Even if we are vaccinated, wearing masks, maintaining physical distance, and avoiding frequent contact to eyes and face is recommended.


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14 Apr 2021  -  5 min read




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