@magicmoodz wrote:
@Porcelain
I didn't get past the first sentence of what you quoted. Those stats were compiled through "the worst months of the pandemic". That is ancient history and only included certain variants.
I recently read an article that stated while vaccines reduced infections by 90% for one variant, that prevention was reduced to 70-72% for a newer variant. We currently have no idea if our vaccines protect us from the India variant and as I stated upthread protection is not lasting as long as was anticipated. That means in a few short many many of us might be unprotected.
Oh and one more thing, that last sentence "if you don't get infected you can't infect anyone else." That is so not true.
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@magicmoodz, I think you might be referring to the recent study presented as a letter to the editor of the New England Journal of Medicine from data obtained in Qatar. They looked at vaccine efficacy for severe disease and death & those that just tested positive or had mild symptoms. They also divided it into 2 groups : those vaccinated with just one dose and those infected 14 or more days after the 2nd dose of the Pfizer vaccine.
In real world data for that population with the B.1.1.7 variant(UofK) & B.1.135 variant (South Africa) being the predominant strains circulating in that population. For serious disease and death both mRNA vaccines performed well against protecting against serious disease & death for both variants.
The Pfizer vaccine was 100% effective in that study in preventing serious disease and/or death in both variants. in preventiion of mild to asymptomatic disease it was 89.5% effective after 14 days for the UofK variant and 75% effective in prevention of mild to asymptomatic disease for the variant identified in South Africa. That is still really good news for real world application for vaccine effectiveness.
As far as length of protection, the vaccine is effective for as long as the length that study subjects have been tested. We can't predict what the coverage will be for vaccinated individuals in a year, because we don't have anyone vaccinated for covid-19 for that length of time. Currently, published data has documented strong immune response in those subjects that were first vaccinated, with no waning of immunity reported at the time of the last samples were drawn and analyzed from participants.
You are certainly wise to be concerned about variants though as other countries such as India experience big, uncontrolled surges. Any one of those variants that will utlimately occur does have the potential to impact not only vaccine efficacy, but treatment modalities such as monoclonal antibodies. I preach that a virus has only one purpose: find, invade, and replicate. As long as a virus is free at will to do that in hundreds of thousands of people, mutations are obviously going to occur. And one of those mutations can upset the apple cart for anyone at any give time. One reason it is so important to get as many people vaccinated as possible.
But it is certainly true that if you don't become infected, you can't pass it along to someone else. One can't transmit something they in fact don't have. I think you might be getting that confused with people that have an asymptomatic infection and can unknowingly transmit the infection? But they still have the infection, they just aren't aware of it at the time.
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