AstraZeneca says COVID-19 vaccine 'highly effective'
LONDON (AP) - AstraZeneca said Monday that late-stage trials showed that its COVID-19 vaccine with Oxford University was up to 90% effective in preventing disease. The results are…
LONDON (AP) - AstraZeneca said Monday that late-stage trials showed that its COVID-19 vaccine with Oxford University was up to 90% effective in preventing disease. The results are…