Johnson & Johnson: US approves first single-dose corona virus vaccine


U.S. health officials have advanced the vaccine.

This Saturday, U.S. officials approved the use of a single-dose vaccine from the pharmaceutical company Johnson & Johnson, the third time the Food and Drug Administration (FDA) has approved it.

This vaccine is considered an effective alternative to those developed by Pfizer and Moderna because it requires only one dose and the other two can be stored in the refrigerator instead of in the freezer.

Tests show that the Johnson & Johnson vaccine is 66% effective and prevents the development of severe symptoms of the disease, with no hospitalizations or deaths.

The United States became the first country to allow the use of a vaccine developed by Belgian manufacturer Johnson.

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