3 ms·

It prevented symptomatic covid, but we still don't know if it prevents transmission of the virus itself. It might just turn you into an asymptomatic spreader.

n4r9 6y ago
Huh, you're correct, at least in the case of Pfizer. That's a pretty important bit of info that seemed to be missing in all the reporting I'd read until I googled for that specifically. I'd be surprised if it turned out that the vaccine simply dials down the symptoms, based on my understanding of vaccines, but I guess we can't rule it out yet.
zaroth 6y ago
> Data are limited to assess the effect of the vaccine against transmission of SARS-CoV-2 from individuals who are infected despite vaccination. Demonstrated high efficacy against symptomatic COVID-19 may translate to overall prevention of transmission in populations with high enough vaccine uptake, though it is possible that if efficacy against asymptomatic infection were lower than efficacy against symptomatic infection, asymptomatic cases in combination with reduced mask-wearing and social distancing could result in significant continued transmission. Additional evaluations including data from clinical trials and from vaccine use post-authorization will be needed to assess the effect of the vaccine in preventing virus shedding and transmission, in particular in individuals with asymptomatic infection. What they are saying is that it is technically possible for their vaccine which is highly effective at preventing symptomatic COVID to be somehow ineffective at preventing asymptomatic COVID. https://www.fda.gov/media/144245/download https://www.fda.gov/media/144245/download
blackrock 6y ago
What? This is the first I heard of this. The Pfizer vaccine is the mRNA vaccine. And it doesn’t prevent you from getting sick. But it might turn you into an asymptomatic spreader? Oh great. Do you have sources? This thing is going to turn us all into walking zombies. LOL.
- deleted 6y ago
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- krona 6y ago
  > Oh great. Do you have sources? The trial simply didn't test for the effect the vaccine has on transmission, so the theory hasn't been disproven.

n4r9 6y ago

Huh, you're correct, at least in the case of Pfizer. That's a pretty important bit of info that seemed to be missing in all the reporting I'd read until I googled for that specifically. I'd be surprised if it turned out that the vaccine simply dials down the symptoms, based on my understanding of vaccines, but I guess we can't rule it out yet.

zaroth 6y ago

> Data are limited to assess the effect of the vaccine against transmission of SARS-CoV-2 from individuals who are infected despite vaccination. Demonstrated high efficacy against symptomatic COVID-19 may translate to overall prevention of transmission in populations with high enough vaccine uptake, though it is possible that if efficacy against asymptomatic infection were lower than efficacy against symptomatic infection, asymptomatic cases in combination with reduced mask-wearing and social distancing could result in significant continued transmission. Additional evaluations including data from clinical trials and from vaccine use post-authorization will be needed to assess the effect of the vaccine in preventing virus shedding and transmission, in particular in individuals with asymptomatic infection. What they are saying is that it is technically possible for their vaccine which is highly effective at preventing symptomatic COVID to be somehow ineffective at preventing asymptomatic COVID. https://www.fda.gov/media/144245/download https://www.fda.gov/media/144245/download

blackrock 6y ago

What? This is the first I heard of this. The Pfizer vaccine is the mRNA vaccine. And it doesn’t prevent you from getting sick. But it might turn you into an asymptomatic spreader? Oh great. Do you have sources? This thing is going to turn us all into walking zombies. LOL.

deleted 6y ago
[deleted]
krona 6y ago
> Oh great. Do you have sources? The trial simply didn't test for the effect the vaccine has on transmission, so the theory hasn't been disproven.