May 10, 2021 Krista Larson N’DJAMENA, CHAD (AP) — At the small hospital where Dr Oumaima Djarma works in Chad’s capital, there are no debates over which coronavirus vaccine is the best. There are simply no vaccines at all. Not even for the doctors and nurses like her, who care for COVID-19 patients in Chad, one of the least-developed nations in the world where about one third of the country is engulfed by the Sahara desert. “I find it unfair and unjust, and it is something that saddens me,” the 33-year-old infectious diseases doctor said. “I don’t even have that choice. The first vaccine that comes along that has authorisation, I will take it.”