1- How do you compare the results?
Moderna said on Monday that its vaccine was 94.5% effective in a preliminary analysis, versus 90% effectiveness for Pfizer and BioNTech a week ago.
2- What does the two vaccines have in common?
Both vaccines are based on a technology called MESSENGER RNA that has not been used before to develop a human-based vaccine.
This approach aims to turn the body's own cells into factories for making vaccines, where vaccines order cells to make identical copies of the protrusions of the protein surrounding the virus, which stimulates the creation of antibodies Protective.
3- What is the difference?
Moderna received $ 955 million from the American Wrap speed program, while Pfizer said it did not receive any federal funding to develop its vaccine, while Biontech got 375 million euros The equivalent of 444 million dollars from the German government.
However, Pfizer entered into an agreement to supply a vaccine with the United States worth nearly two billion dollars, and the US government also agreed to purchase vaccines worth $ 1.53 billion from our country. / p>
4- What are the storage and distribution challenges?
The Pfizer vaccine should be stored very cold for up to a few days before use, but it can be kept in fridge temperatures for up to five days.
At the same time, Moderna pointed to new data that show that its vaccine is stable in refrigerator temperatures for 30 days, and can also be kept in freezers for the long term and does not need To the special facilities required for the Pfizer vaccine.
5- Where will the vaccines go first?
Global demand for vaccines is initially expected to far outstrip supply despite significant efforts made to increase production ahead of time.
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