The US Department of State has issued the following Travel Alert (Level 3 - Reconsider Travel and Level 4 - Do not travel to Lombardy and Veneto):
"Reconsider travel to Italy due to a recent outbreak of COVID-19
Level 4 - Do Not Travel to:
Lombardy and Veneto due to the level of community transmission of the virus and imposition of local quarantine procedures.
There is a widespread ongoing outbreak of respiratory illness (COVID-19) caused by a novel (new) coronavirus that can be spread from person to person. Many cases of COVID-19 have been associated with travel to or from mainland China or close contact with a travel-related case, but widespread sustained community spread has been reported in Italy. The CDC has issued a Level 3 Travel Health Notice for Italy. At this time, CDC recommends that travelers avoid all nonessential travel to Italy. Travelers should review and follow the Centers for Disease Control’s guidelines for the prevention of coronavirus if they decide to travel to Italy. Italy has a longstanding risk presented by terrorist groups, who continue plotting possible attacks in Italy. Terrorists may attack with little or no warning, targeting tourist locations, transportation hubs, markets/shopping malls, local government facilities, hotels, clubs, restaurants, places of worship, parks, major sporting and cultural events, educational institutions, airports, and other public areas."
For further information see US Department of State Italy Travel Alert.