Coronavirus: How do you vaccinate 7.7 billion people?

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

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

No comments:

Post a Comment

Main Post

Russia and Ukraine to 'immediately' start ceasefire talks, says Trump

The US president holds talks with leaders of both countries in the latest efforts to end the fighting. from BBC News https://ift.tt/X8dwyC...