More grist for the mill....
This link very highly informative, brilliantly illustrated on what's currently known, from start to injection on 3 vaccines.
Pfizer-BioNtech, Moderna and AstraZeneca
The journey of COVID-19 vaccines from creation to inoculation
graphics.reuters.com
Their bottom lines:
- - Generally, a vaccine’s real-world effectiveness tends to be slightly lower than its efficacy in clinical trials.
- - In the real world, there are multiple, unpredictable factors, including how many, or few, people adhere to the optimum dosing schedule and timetable; how individuals’ immune systems respond; whether the vaccine was stored at the correct temperature; whether people know, or don’t know, if they have been exposed before.
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It is also not known how long a vaccine will protect someone from the SARS-CoV-2 coronavirus. BioNTech Chief Executive Officer Ugur Sahin has said he is optimistic the immunization effect of the vaccine would last for a year. Experts say that it is likely we will have to live alongside the virus.
- - The evidence suggests that the COVID-19 vaccines developed by Pfizer-BioNtech, Moderna and AstraZeneca
will help stop people developing the disease. Only AstraZeneca’s data, so far, shows signs that its vaccine
may also help prevent transmission of the virus.