The ship's sailor USS Unalga rescued the villagers of Unalaska in 1919, causing the Spanish flu death rate to be 12% there, compared with 90% in the state of Alaska.

Severe weather and complicated terrain make Alaska in the US a very difficult place to survive.

The Spanish flu has infected 500 million people worldwide, of which 50 million people died.

In the spring of 1919, Spanish flu began to appear in Alaska and quickly wiped out many villages.

During the patrol, the crew received signals for help from the Spanish flu outbreak from a new settlement on the island of Unalaska.

When they arrived, they were shocked to find that the entire village and the doctor were infected with the Spanish flu.

Only three people on board received intensive medical training, but all 80 crew members participated in supporting residents for the entire week.

The captain decided to use the food on board to aid the entire village.

Without proper protective equipment, many sailors fell ill, including the captain, but they continued to treat the villagers.

On June 3, 1919, the US Coast Guard sent more forces to assist, including many nursing staff.