Public Timelines

For educational institutions For teachers For students Cabinet

For educational institutions For teachers For students Open cabinet

FAQ Ricevere il Premium

Create a timeline

Public timelines

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate

12 ore 7 feb 2020 anni - Guardian: Masks "not always useful for the healthy general public"

Descrizione:

https://www.theguardian.com/world/2020/feb/07/who-warns-global-shortage-face-masks-protective-suits-coronavirus

Aggiunto al nastro di tempo:

Nathan Rich: COVID-19 in the USA

28 apr 2022

20

2

23651

Data:

12 ore 7 feb 2020 anni

Adesso

~ 5 years and 8 months ago

About & Feedback Accordo Privatezza FAQ

Cabinet Get premium

Donate