ZURICH/LONDON (Reuters) - With COVID-19 vaccine trial results looking positive, governments and pharmaceutical firms face their next daunting challenge: convincing the world to get inoculated.

Public resistance to vaccines has been much discussed this year, but the issue became very real on Monday when Pfizer and BioNTech announced their candidate was more than 90% effective in large trials - hoisting an actual shot onto the horizon.

Numerous opinion polls carried out before and during the pandemic showed confidence is volatile, and that political polarization and online misinformation threatens uptake. Many people have concerns about the accelerated speed of COVID-19 vaccine development.

Read more