The drug was developed by AstraZeneca.

The U.S. Food and Drug Administration (FDA) has approved the use of AstraZeneca’s drug for people with weakened immune systems to prevent COVID-19 disease.

Evusheld is intended for adults and adolescents who are not infected with coronavirus infection and have not had contact with infected people. Tests have shown that Evusheld prevented the appearance of COVID-19 symptoms in 77% of patients.

The companies Eli Lilly, Regeneron and GlaxoSmithKline are also developing drugs of a similar effect.

The AstraZeneca vaccine, widely used in the world, has not yet been approved for use in the United States.