The United States has refused to provide the corona vaccine to Pakistan in the first phase.
US officials have informed Pakistan that they will first vaccinate their people if the corona vaccine is developed.
Pakistan's Foreign Office has also informed the Ministry of National Health of the response from the United States.
The US letter said the company would meet local demand for the vaccine in the first phase and would export the corona vaccine in the second phase.
The letter also states that Johnson & Johnson is still undergoing clinical trials of the corona vaccine, and that Johnson & Johnson is experiencing temporary complications in clinical trials.
The letter said that the Pakistani mission in Washington is active in obtaining the Karuna vaccine and the Pakistani mission is in touch with the companies working on the vaccine.
In addition, the Ministry of Health is making efforts to liaise with US companies and Pakistan is liaising with companies for advance booking of corona vaccine.