AstraZeneca says vaccine ‘highly effective’ against COVID-19

AstraZeneca COVID vaccine up to 90% effective, data shows

However, like all other candidate vaccines for COVID-19, AstraZeneca's vaccine is also lacking in key details such as the breakdown in infections, the durability, or the efficacy in the different age groups of trial participants.

By contrast the AstraZeneca/Oxford vaccine will be sold at cost until the end of the pandemic (reportedly limited to July 2021) - around €2 per dose.

The EU has secured up to 400 million doses of AstraZeneca's experimental vaccine.

"We have enough to vaccinate the Australian population three times over".

To develop, make and distribute COVID-19 vaccines, the U.S. Department of Health and Human Services and the Department of Defense have partnered to oversee Operation Warp Speed, the Trump administration's program to organize distribution efforts. By January we will have 100 million doses, minimum.

"China expects someone who can deal with US-China relations in a sensible way that serves US interests", he said.

When asked how to be sure there won't be any future prolonged side effects from the vaccine, which is the first of its kind, Adams said that he speaks every day to Dr. Robert Redfield, director of the US Centers for Disease Control and Prevention; Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases; and Dr. Deborah Birx, the White House Coronavirus Response Coordinator.

"This vaccine's efficacy and safety confirm that it will be highly effective against COVID-19 and will have an immediate impact on this public health emergency", AstraZeneca's chief executive Pascal Soriot said in a statement on Monday.

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"The news overnight from the United Kingdom is very good for Australians", Mr Hunt said.

A vial of the coronavirus vaccine developed by AstraZeneca and Oxford University, in Oxford, England.

Earlier this month, Moderna said its vaccine appears to be 94.5% effective, according to preliminary data from the company's study.

It added: "One dosing regimen (n=2,741) showed vaccine efficacy of 90 percent when AZD1222 was given as a half dose, followed by a full dose at least one month apart".

Adams said that he has been traveling around and talking to people, including presidents from historically black colleges and universities, trying to help people understand that Covid-19 vaccines were developed safely. While efficacy is essentially a tool of measurement during clinical trials, effectiveness is the vaccine's performance in the real world and usually, effectiveness is always lower than efficacy, if the performance of past vaccines is any indication.

These results are based on the evaluation of about one-third of volunteers who are expected to participate in this trial, which is ongoing in other parts of the world and will enroll up to 60,000 people.

The three drugmaking companies have reached agreements with governments and global health organizations about the cost of their vaccines: Pfizer's will cost about $20, Moderna's $15 to $25 and AstraZeneca's $2.50.

The Oxford vaccine includes people 70 years and older, which naturally increases the risk of temporally associated with adverse results.

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