People Tend To Compare COVID-19 Vaccines, Which One Is the Most Effective? Here's The Explaination

Meanwhile, Pfizer BioNTech and Moderna vaccines use the mRNA (messenger Rna) method.

The mRna-based vaccine will teach and instruct the body's cells to form proteins that can trigger an immune response in the body.

This immune response will produce antibodies that fortify our bodies when infected with the coronavirus.

On the other hand, the Johnson & Johnson (J&J) vaccine modifies the Adenovirus that contains the genetic material found in the coronavirus.

Unlike other types of vaccines, the J&J vaccine requires only one injection.

How effective are the existing Covid-19 vaccines so far?

Based on clinical trials so far, Moderna and Pfizer BioNTech have the highest levels of efficacy, namely 94 percent (14 days after the second dose) and 95 percent (a week after the second dose), respectively.

Meanwhile, J&J has an efficacy rate of 66 percent, 28 days after a single injection.

Then, how to calculate the level of efficacy?

Of course, this is done through clinical trials involving tens of thousands of people. Pfizer BioNTech's clinical trial involved 43,000 people.