So we finally have COVID vaccines rolling out to the general public. Do they even work? We’re going to talk about that right now.
I’m Dr. Scott Bland, a family physician. My goal is to help you understand all the information that’s coming out about the COVID vaccine, so that you can make the choice that is the right one for you. So let’s go ahead and run through the data. There may be more vaccines later, but right now we have the Moderna and the Pfizer. Let’s get to it.
Does the Moderna Covid vaccine work?
We’ll start alphabetically with the Moderna vaccine. You’ll see, they put over 15,000 people in each group. 15,000 people got the actual vaccine (two doses worth) and 15,000 people got a placebo, which was essentially a fake injection of saline. As for results with the Moderna, you can absolutely see, there was a huge difference here. We had 11 people who, after they got their second dose happened to have symptoms consistent with COVID over a two week period. They were checked and found out that they actually had a COVID infection. This was only 11 people. But when you look at the placebo group, the people who did not get the vaccine… 185. 185 compared to 11 in terms of who had symptomatic COVID. Now, let’s look at severe symptoms, because some people have very minor symptoms. There are zero in the vaccinated group and 30 in the non-vaccinated group. Again, a pretty big difference for the two weeks after they get their second dose.
Does the Pfizer Covid vaccine work?
Now that we’ve talked about the Moderna, let’s go ahead and talk about the Pfizer vaccine. This was a slightly larger one. Over 21,000 people in each group. 21,000 got the vaccine, 21,000 got the placebo. Let’s look at the numbers of people who had symptomatic COVID. They tracked it for one week after vaccination. There was eight… just eight people with symptomatic COVID in the vaccination group and 162 in the placebo group. Eight compared to 162, in terms of who had symptomatic COVID. They also tracked a separate number for severe COVID and again that’s people who are very sick. One in the vaccinated group with severe COVID and 10 in the placebo group had severe COVID. So again, just like the Moderna, really big difference in terms of number of people with some symptoms of COVID and severe symptoms of COVID for the first week after the trial.
What we don’t know about the Moderna and Pfizer Vaccines
We don’t think the vaccine promises complete immunity to Covid.
I also think that it’s important to talk about the things that this study does not say. You don’t want to over promise. You don’t want to be dishonest in the way you represent the results of something. So let’s talk about some things that this does not actually say. This study does not mean that you can’t get COVID. We talked about the numbers. There were clearly some people with symptoms, a lot less, but some. There were some people who had severe COVID afterwards, lot less, but still some. So far, this vaccine data does not mean that no one can get COVID. And anyone who tells you that it does is not really being accurate about the data.
We don’t yet have proof the vaccine means you can’t give Covid to someone
Another thing that we need to talk about is that this does not necessarily promise that you can’t give COVID to someone else. This study was designed to look at symptoms, to look at health risks, but it was not designed to check transmissibility. I have lot of people ask me, “Hey, can I stop wearing the masks?” Do I need to keep social distancing once the vaccines are out? Do we just go back to life as normal? And I don’t know that because we haven’t been able to track if you can still transmit the virus to somebody else in a really effective way. Hopefully we’ll have that data soon, but we just don’t have it right now.
We don’t know how long the Covid vaccine lasts
The last thing that we need to be really particular about admitting is that we do not know how long these benefits will last. They clearly last for a few weeks. There’s a pretty massive benefit in terms of reduction of minor symptoms and reduction of severe symptoms. It’s pretty good data so far, but we do not know how long that will last. I can’t promise you that it’s going to last for two years. I can’t promise you that it’s going to last for 20 years. And at this point, no one can promise you that. We’re certainly hopeful and we’re going to be tracking that. As more information comes out, we can let people know, but we just don’t know yet how long this lasts.
I’m going to link below the actual studies from the New England Journal of Medicine about the Pfizer and the Moderna vaccine. You can read through them if you want. If you’ve got some follow-up questions, stuff I didn’t address that you’d like to hear about, please post them in the comments below. I’ll make sure that I get some answers out to you and try and give you some more information that I might not have gotten this video/post. Also, if you want to get updates about coronavirus issues or other medical things, as they come up, feel free to subscribe and you’ll be able to keep up with the conversation as we all learn more about this topic.
Thanks,
Dr. Scott Bland
Moderna Covid19 Study https://www.nejm.org/doi/full/10.1056/NEJMoa2035389
Pfizer Covid 19 Study https://www.nejm.org/doi/full/10.1056/NEJMoa2034577
FDA Briefing Document about the Pfizer Vaccine: https://www.fda.gov/media/144245/download
My video discussing, “What is an FDA Emergency Use Authorization?” https://youtu.be/0oa-dLccJvQ
