Moderna vaccine covid19

There are more than 150 COVID vaccines under development with 50 of those having reached the human trial stage. 7 of these 50 have been approved for emergency use in Europe, North America, and Asia. In the US, only Pfizer has been approved for emergency use by the FDA but it is believed that the Moderna vaccine will follow suit by the end of December. Some important factors the FDA has to consider when approving a vaccine against COVID include, how long immunity will last against COVID-19 and whether the vaccine will prevent people from carrying and transmitting it to those who are not vaccinated.

Pfizer Covid-19 Vaccine

The Pfizer vaccine is the first mRNA vaccine to become available to the public. It consists of fragments of genetic information from the virus. This messenger RNA carries instructions that cells use to build proteins. When the COVID-19 virus tries to invade the cells, they react by pumping out spike proteins which prompts the immune system to recognize and attack the coronavirus. This vaccine must be administered in 2 injections and is considered to be more than 95% effective.

Moderna Covid-19 Vaccine

Moderna is another mRNA vaccine that is about to be released in the US. It works similarly to the Pfizer vaccine but is less volatile. It can be refrigerated for a month and frozen for up to six months. Moderna also has been proven to be around 95% effective but only 86% effective in adults over the age of 65.

Side effects from both vaccines include fever, aches, and chills. These all a good sign that the vaccine is working as intended to provoke a response from the immune system.

Written by: Kelly Stewart