EMELINE WUILBERCQ ETHIOPIA rolling out its first COVID-19 vaccines among frontline health workers, but the vast country of 110 million people still faces an uphill struggle to beat the pandemic, according to a senior doctor in Addis Ababa. The mass vaccination drive began on Saturday, exactly a year after a Japanese man in the capital became the Horn of Africa nation's first confirmed coronavirus case. Natnael Bekuretsion, the 28-year-old medical director of Eka Kotebe General Hospital, was not among the first group of healthcare employees to receive the AstraZeneca vaccine, but he said the arrival of the doses was "light…