10 COVID-19 Vaccine Candidates Who Have Entered Phase 3 Clinical Trials According to WHO

Modern / NIAID

The mRNA-1273 vaccine or better known as the Moderna vaccine is a COVID-19 vaccine developed by the US biotech company Moderna and the National Institute of Allergy and Infectious Diseases (NIAID).

The Moderna vaccine relies on technology that has never been used in other vaccines at this time, namely using genetic material called messenger RNA (mRNA). Moderna’s clinical trials claim to be nearly 95 percent effective.


The BioNTech / Pfizer vaccine is a vaccine developed in collaboration with Pfizer and the German biotechnology company BioNTech. This vaccine has been carried out in recent trials showing a success rate of up to 95 percent. In addition, in testing this vaccine, it was found that there were no serious side effects in the future.

Previously, of the 170 volunteers who had contracted COVID-19 and participated in the Pfizer vaccine trial, 162 people had received a placebo instead of the vaccine. Which means the Pfizer vaccine is 95 percent effective.


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