![Bob Wachter on Twitter: "9/ On 3/27, UCSF launched mask policy (below). It seems hard to believe that we went 10 days without requiring masks. 2020's political mistakes would (& will) fill Bob Wachter on Twitter: "9/ On 3/27, UCSF launched mask policy (below). It seems hard to believe that we went 10 days without requiring masks. 2020's political mistakes would (& will) fill](https://pbs.twimg.com/media/EwznFmIVIAQOpi0.jpg)
Bob Wachter on Twitter: "9/ On 3/27, UCSF launched mask policy (below). It seems hard to believe that we went 10 days without requiring masks. 2020's political mistakes would (& will) fill
Solution:: 1. Find Subnet Mask and Complement Subnet Mask From The IP Address 175.231.232.116/27 | PDF | Ip Address | Transmission Control Protocol
![Guidance for Implementing COVID-19 Prevention Strategies in the Context of Varying Community Transmission Levels and Vaccination Coverage | MMWR Guidance for Implementing COVID-19 Prevention Strategies in the Context of Varying Community Transmission Levels and Vaccination Coverage | MMWR](https://www.cdc.gov/mmwr/volumes/70/wr/social-media/mm7030e2_COVID19PreventionStrategies_IMAGE_27July21_1200x627-v2.jpg)