How long does Pfizer’s and Moderna’s efficacy last?

Answers to your coronavirus questions from Dr. Jen Ashton
1:34 | 02/25/21

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:



Skip to this video now

Now Playing:


Related Extras
Related Videos
Video Transcript
Transcript for How long does Pfizer’s and Moderna’s efficacy last?
Yeah, a little warmer. Yes. Dr. Ashton here to answer your questions. Let's starts with question number one. Doc, what do we have? Let's see. Is there any updated information on how long pfizer's and moderna's efficacy lasts? None that has been released in a widespread or a massively public manner. Let's go back to last year, when we started these phase three clinical trials in midsummer. They got about two months of data, ongoing follow-up, obviously, for at least two years. And then they crunched and analyzed that data to submit to the fda for authorization. So again, we are going to be following that. The six-month mark at the nine-month mark and so on up to two years. Right now the immune protection or so-called durability looks pretty good. I have not actually heard this before. Someone says all my life my mom told me that drinking ice cold beverages is bad for digestion and heart health. Is there any science to this, or did mama just make this up? My mother submitted this. She's a retired nurse. No, I'm just kidding. No science to this but if you look at medicine from India, they are big proponents of drinking room temperature beverages. I will tell you from a medical standpoint our bodies are pretty sophisticated machines and we can adjust temperature pretty quickly. But if it bothers you, or my mother, then don't do it. Us Americans like our ice. Right? Me, too. I like cold drinks. Ice cold. Dr. Ashton, thank you so much. You can continue to submit your questions from your mama to Dr. Jen on her Instagram @drjashton. We are turning now to a

This transcript has been automatically generated and may not be 100% accurate.

{"duration":"1:34","description":"Answers to your coronavirus questions from Dr. Jen Ashton","mediaType":"default","section":"ABCNews/GMA","id":"76112371","title":"How long does Pfizer’s and Moderna’s efficacy last? ","url":"/GMA/GMA3/video/long-pfizers-modernas-efficacy-76112371"}