Iowa resident dies of rare Lassa fever, officials say

Death is first in the United States since 2020

An Iowa resident has died after contracting Lassa fever, health officials in the state confirmed this week. The death is the first Lassa fever fatality in the United States since 2020, according to the Centers for Disease Control and Prevention (CDC).

Lassa fever is a viral hemorrhagic fever that's transmitted by contact with infected rodents or their urine or feces, per the CDC. It is a serious illness that can cause fever, vomiting, diarrhea, and seizures. In severe cases, it can lead to organ failure and death.

The Iowa resident became ill after traveling to West Africa, where Lassa fever is common. The person was hospitalized in Iowa and died on July 29, county health officials confirmed.

The Iowa Department of Public Health said it is working with the CDC to investigate the case and identify any potential contacts of the deceased person.

There is no cure for Lassa fever, but early diagnosis and treatment can improve the chances of survival. People who are infected with Lassa fever should be isolated and given supportive care.

The CDC recommends that people who are traveling to West Africa take precautions to avoid contact with rodents and their urine and feces. These precautions include:

• Covering food and water
• Avoiding contact with rodents
• Washing hands frequently

Lassa fever is a serious illness, but it is not easily spread from person to person. The risk of infection for people who have not traveled to West Africa is very low.