WHO Warns There May Never Be br A 'Silver Bullet' for COVID-19 The World Health Organization has br warned that despite the progress in br vaccine research, the road to br normality remains far off. WHO's Tedros Adhanom, br via virtual news briefing WHO emergencies head Mike Ryan emphasized br the importance of enforcing mask-wearing, br hand-washing and social distancing. Mike Ryan, via virtual news briefing COVID-19 has infected over br 18.14 million people and 688,080 br people have died worldwide.