As of Sunday morning, there have been two deaths in Italy from the illness, with 132 cases diagnosed and 26 in intensive care.
Late Saturday night, the Prime Minister of Italy and the Minister for Sport announced in a press conference that all sporting events in the Lombardy and Veneto region plus Torino-Parma were suspended for this weekend.
Inevitably, now Ludogorets have released a statement confirming their formal request to UEFA for more information on the situation in Milan.
The Bulgarians are set to play at San Siro on Thursday in the second leg of the Europa League Round of 32.
The first leg ended 2-0 for Inter in Bulgaria on February 20.
Ludogorets have requested information as soon as possible, because they have 600 fans who were planning to make the trip to Italy.