Crisis at the blood transfusion station in Uzhgorod

Transcarpathian Regional Blood Transfusion Station asks for donors with blood types 0 (I) Rh (minus) and 0 (I) Rh (plus). 
There is a critical shortage at the station. 
Transcarpathian regional blood transfusion station is located at Uzhgorod, Tolstoy st., 15. 
Recall how to prepare for blood donation:

 https://bit.ly/2JuAYJ8