33
/pt/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
4537590
423397
2
Create a timeline
Public Timelines
For educational institutions For teachers For students Cabinet
For educational institutions For teachers For students Open cabinet
FAQ Receber premium
Create a timeline
Public timelines
FAQ
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate

12 h 10 jan 2020 ano - WHO Guidelines: medical workers should wear masks, goggles, gowns.

Descrição:

https://apps.who.int/iris/bitstream/handle/10665/330374/WHO-2019-nCoV-laboratory-2020.1-eng.pdf?sequence=1&isAllowed=y

Adicionado na linha do tempo:

Nathan Rich: COVID-19 in the USA

ByNathan Rich
28 abr 2022
20
2
23651

Data:

12 h 10 jan 2020 ano
Agora
~ 5 years and 9 months ago
About & FeedbackAcordoPrivacidadeFAQ
Support 24/7  
CabinetGet premium
Donate