The government has now secured enough coronavirus vaccine to give 5 doses to every person in the country.
A low-cost, widely used anti-inflammatory drug improved survival in patients with Covid-19, the first treatment to show life-saving promise months into the pandemic.
Researchers in the U.K. say dexamethasone, a widely available corticosteroid, reduced COVID-19 deaths by up to one-third in severely ill hospitalized patients.
Professor Peter Horby, Professor of Emerging Infectious Diseases and Global Health, has said that dexamethasone is the 'only drug shown to reduce mortality'.
Around 90% of experimental vaccines never reach the clinic because of problems in development or manufacture.