Covid and the severity

[NoWigNoWit]

Morning,

I have a question that I’ve always wondered, maybe someone could shed light.

Im reading that some people are completely symptomless, and some people are really poorly with it - why is this?

DH and I had covid over Xmas. DH was ok, bit of a cold/tired, but he was relatively ok.

I then got it, spent 4 days in bed with aches, sickness and I felt completely floored.

My chest today is still phlegmy and I still have a head cold (and now I can’t hear properly!!)

We’re both double jabbed. Is it to do with individual immunity and how well your body copes with illness?

I suspect it is due to some sort of genetic / dna type thing that we just don’t understand as yet.

Would live to know. DP who always suffers a lot with illness, apparently, was floored for 3 weeks. Me, + a few days later, just a week and 3/4s as severe. What affects it?

It's potentially to do with genetics, but also they believe there's a lot around what illness you have previously been exposed to.

bmcmedicine.biomedcentral.com/articles/10.1186/s12916-020-01887-1

But all illnesses are like this, people catch them to varying degrees and some never catch them at all.

For instance I have never caught chicken pox despite my brother having it when we were children and nursing my two young DC when they had it.

When I was young both my brother and I caught measles at the same time (not vaccinated - long story but not anti vax). My brother was very ill with it and was almost hospitalised while I just had the rash and a bit of a headache.

I had a terrible non-covid cold in October and neither my DH or DC caught it.

It has always been one of the great 'mysteries' of this virus. My 89 year old mil was barely effected (picked up as in hospital) yet other much younger (and presumably in much better health then she was) have a terrible time.

I guess some people have better immune systems than others. We know immune systems are influenced by age, lifestyle, other medical conditions etc. But if you strip all that away, it must be simply genetic?

This is an easier read about previous infections

www.mlo-online.com/disease/infectious-disease/article/21229865/previous-exposure-to-coronaviruscaused-colds-may-mean-fewer-covid19-symptoms

I think theres also an element of how you are when you get it. I caught it in Nov when i was run down and so had symptoms for 2 weeks - I felt exactly like i did when i had flu

I think some people have covid asymptomatically and get a cold/flu on top . They only know about covid because they have tested