But the jab doesn't stop you getting it or passing it on. Why does everyone always miss these points?
No jab stops people from catching what ever it is for. Why people can't get their head around that defeats me. They must think the improvement in the immune system causes it to leap out of the body and attack the particular virus before it can infect them.
A vaccine readies the immune system. From what we are being told to do it probably takes ~7 days for the immune system to get moderately active. No idea how long an asymptotic is capable of infecting others but lets say another 7 days but it's longer than that. The vaccine reduces the first 7 days as the immune system is ready, That in turn helps people who are going to have problems when they catch as the immune system will start gobbling virus up sooner. Both types of people could be clear of the virus in 7 days rather than 14. That reduces their opportunities to pass it on. That over a period of time can cause a virus to disappear - more or less. Sometimes other steps are needed. This one for instance
Polio is spread when the stool of an infected person is introduced into the mouth of another person through contaminated water or food (fecal-oral transmission). Oral-oral transmission by way of an infected person's saliva may account for some cases.
That meant that kids could catch it from playing in water. You'd think sewage only but not as simple as that. The sewage can finish up in all sorts of places.
Covid is new. That causes problems as there are don't knows. For instance generally when people have "recovered" the virus is still around in them. Generally true of virus infections and tricky to find out what it means. Some countries reported re infection of people who have already caught it. It was put down to crap testing here. Now they find that different mutations can definitely do that. They are looking at how long pre infection immunity lasts. Sounds like 6month may be a good guess at the shortest.
https://www.manchester.ac.uk/discover/news/covid-19-immunity-how-long-does-it-last/
T cells are what kicks the immunity response off. A vaccine trains them to recognise an infection. The covid vaccines are new. The only really reliable way of finding out how effective they are is to use them once they are know to stimulate T cells in the right way and are safe. T cells have evolved to do what they do hence little worry about long term effects. They are doing what they will do anyway if some one gets infected. The gov wants the best outcome. That means everybody having the jab. One best outcome was the quiet period after the first lock down yet it still resulted in 20,000 deaths. They just took longer. Many more will have gone into hospital. ~10% will have long covid. They haven't a cat in hells chance of vaccinating everyone quickly so they have decided to vaccinate people who are at most risk of needing treatment and most likely to suffer badly. They say 25% of the population but just a nice number to say it's 15m of 68m. That will have another outcome. Treatment needed when people are infected and also some reduction in spread - hopefully but they have done the best they can. The steps they have taken will result in some outcome but what? They are also currently worrying about next Autumn and repeat doses of vaccine maybe of a different or the same type.
Anyone that doesn't comply is just helping muck the country up even more.
Antivaxers - simple it mostly started due to MMR and increases in certain types of problems in kids. It's been rubbished and is far more likely to be down to what they eat, even what gets in it one way or the other. I have direct experience of that with my son. Certain things made him a bit hyper. He still mostly avoids them.
I'm lucky as young as he was he realised himself when I pointed out what was happening. The hyper part wasn't that bad but may have got a lot worse. Diagnosis has also improved and things that went on anyway now have a name put on them,