Russia plans to launch a nationwide vaccination campaign in October with a coronavirus vaccine that has yet to complete clinical trials, raising international concern about the methods the country is using to compete in the global race to inoculate the public.

The minister of health, Mikhail Murashko, said Saturday that the plan was to begin by vaccinating teachers and health care workers. He also told the RIA state news agency that amid accelerated testing, the laboratory that developed the vaccine was already seeking regulatory approval for it.

Russia is one of a number of countries rushing to develop and administer a vaccine. Not only would such a vaccine help alleviate a worldwide health crisis that has killed more than 680,000 people and badly wounded the global economy, it would also become a symbol of national pride. And Russia has used the race as a propaganda tool, even in the absence of published scientific evidence to support its claim as a front-runner.

“I do hope that the Chinese and the Russians are actually testing the vaccine before they are administering the vaccine to anyone,” Dr. Anthony Fauci, director of the National Institute of Allergy and Infectious Diseases in the United States, warned a congressional hearing on Friday.