A Maasai tour guide wears a face mask and rubber gloves as a preventive measure against the spread of coronavirus disease (COVID-19), during the wildebeests' (Connochaetes taurinus) migration, between the Maasai Mara game reserve and the open plains of the Serengeti, southwest of Nairobi, in the Maasai Mara game reserve, Kenya August 9, 2020. Picture taken August 9, 2020. REUTERS/Thomas Mukoya