COVID-19 vaccine: Moderna vs. Pfizer – which is better?

The covid-19 pandemic really took a toll on the health safety of the world in just one year. Amidst all the attempts to find a solution to the problem are some vaccines that have been proven to help curb the disease. Many more proposed and supposed solutions have been announced but have not yet been certified by appropriate authorities.

This article will be focusing on the two most popular ones–Modern and Pfizer. We will look at some of the similarities and differences they both have and why we could probably choose one over the other. Let me take you through this article.

Before we go ahead into the article, you should note that patients don’t have the option to choose the vaccine they want to be treated with. This is because these two are the only tested and trusted ones since the pandemic began. Whichever one a patient meets is the one they will be treated with. We will be looking at them in sections.


The efficacy of any vaccine has to be the most important factor in determining if it should be chosen over any other one. These two products have the same level of efficacy and not one can be chosen over the other.

Target patients

Moderna has only made vaccines available for people ages 18  and older, making it a little bit unrealistic for much younger individuals who are also prone to getting the virus. However, the company has been testing some vaccines for people aged 12 to 17.

Pfizer, on the other hand, has been producing vaccines for people aged 16 and above, which is more realistic. They have also, reportedly, been testing some vaccines for younger people.

Side effects

Adverse side effects should kick any vaccine out of the market. Nothing is worse than trying to solve one problem and getting into another one. It is for this reason that some of the earlier vaccines were rejected by the FDA.

Both vaccines have the same side effects, which include pain in the injected area, headache, muscle & joint pain, and fatigue. As you can see, these side effects are very much mild and are not long term, making the vaccines safe for consumption.

Safety for pregnant and nursing women

Neither Moderna nor Pfizer has been tested in these areas. However, many tests are going on to make the products very safe for consumption by pregnant and nursing mothers.


The dosage for Moderna lasts for 28 days. This means that patients have to take the vaccine for up to 28 days to finally see results. However, the dosage for Pfizer lasts for 21 days. However, both products have the same levels, of efficiency.

Both products are also very alike in terms of storage requirements, protection durability, purchase order, and more.


Both Pfizer and Moderna offer the same benefits to patients and it is hardly even an option for coronavirus patients because they will be treated by the one that the hospital has stocked.