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Which will be the gaps between the 3 primary COVID-19 vaccines?

Three COVID-19 vaccines – in Pfizer/BioNtech, Moderna, and Oxford/AstraZeneca – seem set are the most frequent ones for Europeans.

While all of them have an identical purpose, there are significant differences between the jabs, from their makeup and reported efficacy, to their cost and simplicity of distribution and conservation.

The Pfizer vaccine, such as the Moderna one, utilize advanced messenger RNA technology. In a nutshell, this technology educates our cells on how to generate a protein, and that’s exactly what makes the immune system respond.

It’s maintained their efficacy in successfully combating COVID-19, at around 95 percent, is greater than that of AstraZeneca.

Both, however, are somewhat more costly.

The huge drawback of Pfizer’s jab is it has to be kept from the intense cold, in temperatures as low as -70C to -80C. Moderna’s can stay stable for 30 days at a temperature of between 2C and 8C, however, for longer periods it might need to be frozen at -20C.


In comparison to Pfizer and Moderna, AstraZeneca’s jab utilizes a more conventional vaccine technique, utilizing an attenuated variant of the virus which causes the frequent cold in chimpanzees.

This virus was genetically modified with a gene for a coronavirus protein to excite the body’s immune response.

Its efficacy rate is reduced to approximately 70%. However, under certain circumstances, this may be as large as 90 percent.

Nonetheless, it’s a whole lot more affordable and easier to save than Pfizer’s vaccine. The AstraZeneca vaccine could endure in a standard fridge for up to six months, whereas the Pfizer one requires temperatures of around -80℃.

Are different offenses on their way?

The European Union has purchased thousands of those three vaccines. Additionally, there are Chinese and Russian-developed jabs.