Sunday, November 29, 2020

Coronavirus: How do you vaccinate 7.7 billion people?

Five challenges of distributing a Covid-19 vaccine to billions of people.

from BBC News - Home https://ift.tt/3o8y8Jq

No comments:

Post a Comment

'I can't hear it' - Wimbledon's first day of electronic calling

Some players have said the calls are too quiet. Others say they miss the tradition. How has the first day of electronic line-calling gone at...