UK Develops Drug Proven to Reduce Risk of Death in Covid-19 Patients

The UK government funded the first clinical trial for a COVID-19 treatment, dexamethasone, which reduces the risk of death. The trial's success is attributed to the thousands of UK patients who volunteered. Dexamethasone is now available across the NHS, with measures in place to ensure supply even if a second peak occurs. Despite the reduced death risk, further research is necessary. The achievement is a significant milestone for British science, benefiting not only the UK but also the world.

According to the text, what is still considered too high despite the treatment?

What is the significance of the scientific achievement mentioned in the text?