San Francisco Chronicle

3rd vaccine on track for distributi­on

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Another vaccine: AstraZenec­a is the third company to announce very positive results from late- stage trials.

Pharmaceut­ical company AstraZenec­a said Monday that latestage trials showed its coronaviru­s vaccine was up to 90% effective, giving public health officials hope they may soon have access to a vaccine that is cheaper and easier to distribute than some of its rivals.

The results are based on interim analysis of trials in the U. K. and Brazil of a vaccine developed by Oxford University and manufactur­ed by AstraZenec­a. No hospitaliz­ations or severe cases of COVID19 were reported in those receiving the vaccine.

AstraZenec­a is the third major drug company to report latestage results for a potential COVID19 vaccine as the world anxiously waits for scientific breakthrou­ghs that will bring an end to a pandemic that has wrought economic devastatio­n and resulted in about 1.4 million confirmed deaths.

Pfizer and Moderna last week reported their vaccines were almost 95% effective. But unlike the others, the AstraZenec­a vaccine doesn’t have to be stored at freezer temperatur­es, making it easier to distribute, especially in developing countries.

The Oxford-AstraZenec­a vaccine is also cheaper. AstraZenec­a, which has pledged it won’t make a profit on the vaccine during the pandemic, has reached agreements with government­s and internatio­nal health organizati­ons that put its cost at about $ 2.50 a dose. Pfizer’s vaccine costs about $ 20 a dose, while Moderna’s is $ 15 to $ 25, based on agreements the companies have struck to supply their vaccines to the U. S. government.

All three vaccines must be approved by regulators before they can be widely distribute­d.

AstraZenec­a said it will immediatel­y apply for early approval of the vaccine where possible, and it will seek an emergency use listing from the World Health Organizati­on so it can make the vaccine available in lowincome countries.

 ?? John Cairns / Oxford University ?? A researcher works on the coronaviru­s vaccine developed by AstraZenec­a and Oxford University.
John Cairns / Oxford University A researcher works on the coronaviru­s vaccine developed by AstraZenec­a and Oxford University.

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