Greetings Goanet Kindly post these information links:
1. ‘Unprecedented achievement’: who received the first billion COVID vaccinations? NEWS 29 APRIL 2021 https://www.nature.com/articles/d41586-021-01136-2 https://www.nature.com/articles/d41586-021-01136-2 2. This helpful link COVID-19 Indoor Safety Guideline ( indoor-covid-safety.herokuapp.com) https://indoor-covid-safety.herokuapp.com/ in PNAS April 27 2020: https://www.pnas.org/content/118/17/118e2018995 Graphs helpful https://www.pnas.org/content/118/17/118e2018995 3. FRONTLINE | The Virus That Shook The World (Part One) | Season 2021 | Episode 8 | PBS https://www.pbs.org/video/the-virus-that-shook-the-world-part-one-n5mhte/ Part Two airs 7 May 2021 thanks stay well wn
