COVID-19 has brought attention back to deadly viruses. Meet hard-working scientists in Singapore and elsewhere racing to identify emerging pathogens, battle existing viruses and co-operate to find urgently-needed treatments and vaccines.
This is an update of an article originally published on November 24, 2020. New data is coming in on the efficacy of the various vaccines, and the Pfizer-BioNTech and Moderna vaccines are being distributed in the U.S. and other countries.
