Doctors around the globe report that the malaria drug hydroxychloroquine seems the most effective treatment they've tried for coronavirus patients - but less than half as many doctors are prescribing it in the US as in other hard-hit countries like Spain.
A survey of 6,200 doctors around the globe reveals that while few corners of the world are untouched by the virus, the pandemic is being handled very differently from country-to-country.
And in some measures, the US continues to fall behind other nations' responses.
For example, an American waits an average of four to five days to get results back after being tested for COVID-19. Half of doctors in Europe and most in China get the test results back within 24-hours.
Dr Murali Doraiswamy, an adviser to Sermo, urged that countries should take note of what is working for doctors and governments elsewhere and move quickly to adopt practices that are saving lives.