'Silent killer' parasitic disease spreading across multiple US states, experts warn

Fox News senior medical analyst Dr. Marc Siegel shares his perspective on whether the mosquito-borne virus in China will spread to the United States and how AI can be detrimental to children's and young adults' mental health on'Fox Report.' A little-known disease is spreading in the U.S., primarily in the state of California, health officials warn. In a new study published in the CDC journal Emerging Infectious Diseases, researchers state that human cases of Chagas disease have been confirmed in eight states, leading them to recommend that the disease is classified as "endemic." "Acknowledging the endemicity of Chagas disease in the United States is crucial for achieving global health goals," the authors wrote. The Centers for Disease Control and Prevention defines a disease as "endemic" when there is a "constant presence and/or usual prevalence" in a population within a specific geographic area -- in other words, the "baseline" level of disease within a community.