The CDC recommends canceling all conferences, festivals, parades, concerts, sporting events, weddings and other types of assemblies with 50 or more people for the next two months.

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In revised guidance issued Sunday night, the CDC recommends all in-person events that consist of 50 people or more throughout the United States be canceled for the next eight weeks.

"Large events and mass gatherings can contribute to the spread of COVID-19 in the United States via travelers who attend these events and introduce the virus to new communities. Examples of large events and mass gatherings include conferences, festivals, parades, concerts, sporting events, weddings, and other types of assemblies. These events can be planned not only by organizations and communities but also by individuals," the CDC wrote in its revised guidance on large events and mass gatherings. "Events of any size should only be continued if they can be carried out with adherence to guidelines for protecting vulnerable populations, hand hygiene, and social distancing. When feasible, organizers could modify events to be virtual."

The CDC's recommendation doesn't apply to the day to day operation of organizations such as schools, institutes of higher learning, or businesses, officials say.

"This recommendation is made in an attempt to reduce introduction of the virus into new communities and to slow the spread of infection in communities already affected by the virus. This recommendation is not intended to supersede the advice of local public health officials," the CDC wrote.