https://www.siliconvalley.com/2020/03/10/coronavirus-google-tells-visitors-to-stay-away-from-bay-area-offices/

Google is extending its efforts to prevent the spread of coronavirus by banning visitors from its Mountain View headquarters, as well as all of its offices in the Bay Area and New York.

The move comes after Google’s parent company, Alphabet, last week told employees in Seattle, Japan, South Korea that they should work from home, if possible, and also permitted other employees to work remotely.