2009 swine flu pandemic in Ukraine
The 2009 swine flu pandemic was a global outbreak of a new strain of influenza A virus subtype H1N1, first identified in April 2009, termed Pandemic H1N1/09 virus by the World Health Organization (WHO) and colloquially called swine flu. The outbreak was first observed in Mexico, and quickly spread globally.
Source: Wikipedia — 2009 swine flu pandemic in Ukraine (CC BY-SA 4.0)