COVID-19 pandemic (12 March 2020):
https://www.undp.org/covid-19-pandemic-response.html
IMF has now daily post on the blog (that I am not including in the library backgrounder):
Joint United Nations Programme on HIV/AIDS (UNAIDS)
Opinion: Successful global epidemic responses put people at the centre (12 March 2020): https://www.unaids.org/en/resources/presscentre/featurestories/2020/march/20200312_covid-19
UNHCR/OHCHR (Op-ed was not available online yesterday):
The coronavirus outbreak is a test of our systems, values and humanity / By Michelle Bachelet and Filippo Grandi (12 March 2020): https://www.unhcr.org/news/latest/2020/3/5e69eea54/
UNICEF
UNICEF statement on COVID-19 outbreak (11 March 2020): https://www.unicef.org/press-releases/unicef-statement-covid-19-outbreak
How to talk to your child about coronavirus disease 2019 (COVID-19): 8 tips to help comfort and protect children (11 March 2020): https://www.unicef.org/coronavirus/how-talk-your-child-about-coronavirus-covid-19
This was listed on the starting page with date 11 March, inside it says 11 February, updated 6 March 2020:
How the World Bank Group is helping countries with COVID-19 (coronavirus) (Factsheet, 11 February 2020): https://www.worldbank.org/en/news/factsheet/2020/02/11/how-the-world-bank-group-is-helping-countries-with-covid-19-coronavirus