A member of production personnel walks in a corridor past a room containing a Disposable 50L Bioreactor (STR50) System with peristaltic pumps and an Inverted Microscope inside the Incepta plant on the outskirts of Dhaka in Bangladesh Saturday Feb. 13, 2021. (AP Photo/Al-emrun Garjon)

Production personnel observe the filling operation inside the Incepta plant on the outskirts of Dhaka in Bangladesh Saturday Feb. 13, 2021. It is one of three factories that The Associated Press found on three continents whose owners say they could start producing hundreds of millions of COVID-19 vaccines on short notice if only they had the blueprints and technical know-how. (AP Photo/Al-emrun Garjon)

Production personnel perform the labeling operation of inspected vaccine vials inside the Incepta plant on the outskirts of Dhaka in Bangladesh Saturday Feb. 13, 2021. (AP Photo/Al-emrun Garjon)

Production personnel perform a visual inspection of filled vaccine vials inside the Incepta plant on the outskirts of Dhaka in Bangladesh Saturday Feb. 13, 2021. In an industrial neighborhood on the outskirts of Bangladesh's largest city lies a factory with gleaming new equipment imported from Germany, its immaculate hallways lined with hermetically sealed rooms. Yet the factory is operating at just a quarter of its capacity. It is one of three factories that The Associated Press found on three continents whose owners say they could start producing hundreds of millions of COVID-19 vaccines on short notice if only they had the blueprints and technical know-how. (AP Photo/Al-emrun Garjon)

A member of production checks cell growth and viability of a bioreactor sample under an inverted microscope inside the Incepta plant on the outskirts of Dhaka in Bangladesh Saturday Feb. 13, 2021. (AP Photo/Al-emrun Garjon)