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Covid test

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pgk pgk14/02/2021 21:29:43
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Posted by Peter Greene on 14/02/2021 16:50:08:

Since you guys seem to be way ahead of us in (Ontario) Canada, I have a question:

With the 2-part vaccinations, presumably you are fully protected (at least against the original strain) after the second shot. But what level of protection do you have after the first shot?

A complicated question I haven't researched. Immunity is more than just antibody levels. Media claims of 60+% protected after first shot (and a delay of some few weeks) and claims of 94% after second shot 3 weeks later. However the different vaccines have some variation. The UK approach is to stab everyone they can as fast as they can even though that means a delay of upto 12 weeks for the second dose.

Stuff like this tends not to be black and white - there will be areas of 'you can still catch it but not as badly' and areas of variation by age, gender, ethnicity, lifestyle and others. there will doubtless be differences in degree of cross protection against variants too. Unless you carry out challenge studies (unlikely to be acceptable here) you have to sift through huge numbers of vaccinated and control individuals to filter out the data.

There is also a suggestion that switching vaccine types between first and second may be better - or that could just be spin...


Dave Smith 1414/02/2021 22:24:13
213 forum posts
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Wife and I both 65 had the Astrazenica jab last Friday at our local surgery 10 mins walk down the road. In and out in 5 mins, because if you walk you do not need to rest for 15 mins. Wife had no reaction at all. My arm is a little sore, but had stomach cramps for about an hour Friday night. If you read the data sheet that you get given with the jab, this is a potential side effect. The whole thing was well organised and very efficient.


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