Highly Contagious Virus Outbreak Prompts More Than 40 School Closures in Colorado KTLA Los AngelesColorado District Closes All 46 Schools To Stop Spread Of 'Extremely Contagious Virus' | TIME TIMENearly 50 Colorado schools closed due to two 'extremely contagious' stomach viruses Daily MailSuspected norovirus outbreak closes 46 Colorado schools 9News.com KUSAA Colorado school district has closed more than 40 schools after a highly contagious virus outbreak CNNView full coverage on Google News