The study used 26 participants? Did I read that right? What is the preferred sample size to back these sorts of claims?
Is one vaccine dose enough if you’ve had Covid? What the science says
21–30 of 44 posts
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#22Earlier quoted context omitted.
Did you not get an antibody test at some point prior to the vaccine? That would have given you an answer with 99% certainty if you used a good one.
I think they are relatively expensive, ~$200. Probably worth it though. We would need some form of official recognition of antibody tests though. Pretty sure most places that require vaccination don't accept antibody test results.
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#23I wish there was an easier way to figure out if you had COVID. As someone who's only got one dose so far, I would gladly skip the second one if I knew for certain I had COVID before, so someone else could get my second dose.
[never mind]
Lots of doses are going to get tossed. Most the people who are going to get the shot have gotten it already.
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#24seems like there's some consensus on two "exposures" worth of immunity being valuable. any data on second shots for folks who took the J&J?
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#25Why doesn't getting Covid and then allowing your body to produce your own immunity not protect you from getting it again? As I understand the variants are not like the flu or the cold (yet!)
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#26Why doesn't getting Covid and then allowing your body to produce your own immunity not protect you from getting it again? As I understand the variants are not like the flu or the cold (yet!)
iirc for some reason the amount of antibodies you have falls sharply after 1-3 months and you're vulnerable again. anecdotally, a friend of a friend (EMT) had covid like 4 times before vaccines were available.
If antibodies fall off quickly from an actual infection, why would this not also happen for the antibodies produced because of taking the vaccine?
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#27Why doesn't getting Covid and then allowing your body to produce your own immunity not protect you from getting it again? As I understand the variants are not like the flu or the cold (yet!)
iirc for some reason the amount of antibodies you have falls sharply after 1-3 months and you're vulnerable again. anecdotally, a friend of a friend (EMT) had covid like 4 times before vaccines were available.
I’d be curious if currently available vaccines stimulate such preexisting antibody-producing bone marrow cells of past COVID patients (which sounds more optimal on the face of it), or they trigger yet another variety of antibodies to be produced in addition to the “native” one.
[0] https://www.nature.com/articles/d41586-021-01442-9#ref-CR1 “Had COVID? You’ll probably make antibodies for a lifetime”
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#28Why doesn't getting Covid and then allowing your body to produce your own immunity not protect you from getting it again? As I understand the variants are not like the flu or the cold (yet!)
iirc for some reason the amount of antibodies you have falls sharply after 1-3 months and you're vulnerable again. anecdotally, a friend of a friend (EMT) had covid like 4 times before vaccines were available.
Antibodies do drop but they're not the only part of the immune system. T cells have memory and will remember the antigen
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#29> Research shows that a previous coronavirus infection plus one dose of vaccine provides powerful protection — but concerns linger This is one thing that’s been incredibly frustrating throughout this whole pandemic. Studies and research will show B, with no sign of A, however inertia/politics/fear/ignorance will continue to push A to the point of harm. An example - a local store was insisting on wiping down the entir…
As someone from a country where running orders are still to disinfect often-touched surfaces (switches, door handles, office desks, etc.) I was surprised by this.
I went to check what CDC from US recommends. It turns out it's pretty much the same:
> Clean high touch surfaces daily. This includes tables, doorknobs, light switches, countertops, handles, desks, phones, keyboards, toilets, faucets, and sinks.
(from https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-si...)
So maybe wiping down the belt between every customer is a bit excessive, but it seems my sources don't agree with the "you don't get COVID from that" part.
Re: Is one vaccine dose enough if you’ve had Covid? What the science says
#30Earlier quoted context omitted.
Did you not get an antibody test at some point prior to the vaccine? That would have given you an answer with 99% certainty if you used a good one.
Antibody tests were only widely available in July-August, so people who got COVID in Feb or March often didn't have high enough antibody counts by that point to flag positive on the tests.
The half-life of antibody levels has been estimated at 73 days. The antibody tests are quite sensitive, time has not been enough of a factor yet to produce false negatives. In a year or two it might be.
The only time concern is that you need to wait 2-3 weeks until after you recover from COVID to ensure you test positive.