The Capitol and a stop sign are seen in Washington D.C., the United States, on Feb. 13, 2020. (Xinhua/Liu Jie)

No other country will be able to buy the drug for the next three months.

WASHINGTON, July 2  -- U.S. health authorities have said that the country is buying nearly all the global supplies of Remdesivir for COVID-19 treatment for the next three months, which could mean that no other country will be able to buy it in the period.

The U.S. Department of Health and Human Services (HHS) confirmed Monday that it had secured more than 500,000 treatment courses of Remdesivir from the pharmaceutical giant Gilead Sciences -- which is all of the company's production for July and 90 percent of that for August and September -- for U.S. hospitals until September.