Just how effective are the Moderna and Pfizer vaccines?

Asked by crazyguy (3207

) April 25th, 2021

There are two sets of numbers that I have seen.

The strange thing is that they are both endorsed by the CDC.

1. About 5,800 out of 77 million fully vaccinated people have been diagnosed with COVID-19. Seven percent of those who have been infected have been hospitalized and 74 have died.

This is taken from
https://pittsburgh.cbslocal.com/2021/04/15/cdc-breakthrough-covid-19-cases/

Based on the calculated efficacy of (77 million – 5,800) / 77 million = 99.992%, one may be tempted to shed the mask and other safety measures.

2. The set of numbers shows an efficacy of about 90%. See https://www.cdc.gov/media/releases/2021/p0329-COVID-19-Vaccines.html

So my question is: which is it?

Observing members: 0

Composing members: 0

14 Answers

Response moderated

Response moderated (Personal Attack)

Response moderated

Response moderated (Unhelpful)

Response moderated (Spam)

Response moderated (Off-Topic)

Iceland on Friday suspended the Moderna anti-Covid vaccine, citing the slight increased risks of cardiac inflammation, going further than its Nordic neighbours which simply limited use of the jabs.
Since Thursday, Sweden and Finland have also suspended the use of the Moderna vaccine but only for those under 30, because of a risk of inflammation of the myocardium, the heart muscle, and the pericardium, the membrane covering the heart.

Denmark and Norway have formally advised against it for those under 18.

omtatsat (1232

)“Great Answer” (1

) Flag as…

@omtatsat Moderna was never approved for people under 18 in the US.

That’s not new news about the myocarditis, did they have new data, like a recent cluster of cases of the side effect? It’s very rare, it happens more in young men.

Myocarditis is a much bigger risk of the actual covid disease itself than of the shot.

The US director of CDC also recently mentioned the risk from the vaccine in interviews regarding the third shot and the risks and benefits.

Pausing doesn’t mean they won’t eventually continue administering it. They are reviewing the data. Maybe those countries will permanently change the age recommendation, or look to changing the dosage. Moderna has had trials with half the dose, I’m not sure where that went.

JLeslie (65459

)“Great Answer” (2

) Flag as…