A total of 181 students and staff at a private boarding school in the Nigerian capital Lagos have tested positive for coronavirus, according to state health authorities. Authorities said there had been a "minor but significant" outbreak among the 441 staff and students at the school in the suburb of Lekki and said most of the now-quarantined positive cases were asymptomatic. Lagos State Commissioner for Health Akin Abayomi said in a statement posted on Twitter that the cases came to light after a 14-year-old girl fell sick on October 3. She tested positive for COVID-19 on October 6, prompting state…