evidence: Dr Tedros, as he likes to be known, is the first African head of the WHO. [...] One formative, and now motivating experience, was the death of a younger brother, who was around four years old at the time, he told Time magazine in November. Later, as a student, Dr Tedros came to suspect it was measles that killed him. [...] Dr Tedros' predecessor Margaret Chan was criticised for a perceived overreaction to the 2010 swine flu outbreak, over which she declared a pandemic and advised countries to spend millions on medicines most did not, in the end, need.