Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: The World Health Organization (WHO) has criticised what it describes as a "shocking imbalance" in the distribution of coronavirus vaccines between rich and poor countries.

Coronavirus: WHO chief criticises 'shocking' global vaccine divide