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AstraZeneca's US trial shows vaccine is 79 percent effective

AstraZeneca's US trial shows vaccine is 79 percent effective”

The scientists said the data show the vaccine is 79 percent effective against symptomatic covid-19 and 100 percent effective against severe illness.

The results were reported in a brief press release.

The British-based drugmaker on Tuesday said it had reviewed the preliminary assessment of its full, or primary, analysis and found it to be consistent with the interim report. The company promised to publish more data within 48 hours. However, the EU's health regulators reaffirmed the vaccine's safety late last week. The latest phase 3 trial data for the vaccine, coming from the U.S., could potentially boost its profile by helping to assuage some prior efficacy and safety concerns.

Magic Mountain has nothing on the ups and downs of AstraZeneca's COVID-19 vaccine.

The fresh data may have arrived too late to make much difference in the USA, where the vaccine is not yet authorised and is unlikely to become available before May.

After Health Canada approved the shot for all adults, the National Advisory Committee on Immunization (NACI) recommended the product be used only on people under the age of 65, citing a dearth of clinical trial data on the vaccine's effectiveness in older people. That scepticism carried over to last week, when senior officials at a number of federal health agencies grew suspicious about why AstraZeneca had not announced data from its United States study.

As other vaccines make their way, instilling confidence in governments and the public, it seems that AstraZeneca is unable to salvage the eroding confidence in its vaccine. In the target group for the first round of vaccinations, 87.8 percent of patients and staff members in convalescent hospitals, 89.5 percent of patients and staff members in nursing homes and 82.4 percent of medical staff members at hospitals received their first shots of AstraZeneca or Pfizer vaccines as of Monday, the KDCA said.

More news: Human rights violations in Xinjiang: Canada, UK and U.S. joint statement

Following a thorough review, authorization and guidelines for use of the vaccine in the USA will be determined by the FDA and Centers for Disease Control and Prevention.

Where is the AstraZeneca vaccine made? The group notified the National Institute of Allergy and Infectious Diseases, the Biomedical Advanced Research and Development Authority, and AstraZeneca of concerns they had with the data release.

The efficacy rate in the US trial was stronger than the 70 per cent figure AstraZeneca reported from an earlier study.

But public confidence in America and Europe was dented by early questions over trial data and then by reports of unusual blood clots among those who had taken it. Then in September, after another participant in the British study fell ill with similar symptoms, AstraZeneca halted its trials globally but failed to promptly notify the United States authorities.

AstraZeneca shares fell 1.8% in London trading. They didn't rule out a link between the vaccine and clotting problems, though, and said they'd raise awareness of symptoms just in case.

"And so far, it is the only vaccine developer that has made a significant contribution to vaccine equity, by licencing its technology to several other companies including SKA Bio in the Republic of Korea and the Serum Institute of India which are producing more than 90 per cent of the vaccines that have so far been distributed through COVAX".



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