Transcript for What you need to know about Johnson & Johnson’s COVID-19 vaccine
The gang's all here and chief medical correspondent Dr. Jen Ashton is going to walk us through so much of what is going on with the pandemic. We begin as we often do with the numbers from Johns Hopkins university, 114 million diagnosed cases of coronavirus worldwide, death toll here in the U.S., now surpassing 513,000, the CDC reporting now though more than 14 million Americans have received a double dose of the pfizer or modern vaccine. Good news to report. More good news over the weekend. There is a double dose of vaccine, this is a single-dose now available, Johnson & so tell us what we need to know. So the fda authorized the Johnson & Johnson vaccine, so they are being shipped out as we speak, today, and tomorrow, and here's what you need to know about this vaccine, so let's walk lieu it carefully. First of all, it is a single dose. It does not require that sub-zero temperature, cold chain storage, which is key. In terms of efficacy, 85% effective in preventing severe disease. You guys, 100% efficacy in preventing covid-related hospitalizations and deaths. In terms of side effects, it compares very well with modern and pfizer, and about 9% get fevers as a side effect and soreness at the injection site, and headache and body ache, typical, typical effects. Dr. Ashton, we have options. So which one is better. If you just prefer to go one, why wouldn't you go with Johnson & Johnson. The logistics of the single dose, by the way even with the other two vaccines is being analyzed right now because we need to ramp up our pace very carefully but we don't have options and it will come down in the short term what is available for you and they all differ in their technology, in their delivery, in the logistics, and they all save lives. Get whichever one you can get when it becomes available. Good advice. Plenty to say. Dr. Ashton, thank you so much.
This transcript has been automatically generated and may not be 100% accurate.