According to CNN, which cited records from the New Mexico Department of Public Health, multiple dead rodents and rodent nests were discovered throughout the New Mexico home where actor Gene Hackman and his wife, Betsy Hackman, passed away.

A March inspection by the New Mexico Department of Health revealed widespread rodent activity across the estate, including dead rodents, nests, and feces in detached garages, sheds, casitas, and even two vehicles per CNN. However, the main residence, where the couple was found, showed no signs of infestation and was considered low risk for hantavirus exposure.

Hantavirus is uncommon but carries a 41% fatality rate among patients in New Mexico, which leads the nation in reported cases. According to the New York Post, individuals cleaning areas with rodent activity—whether indoors or outdoors—should avoid direct contact and use protective gear whenever possible.

The CDC reports that early symptoms of hantavirus resemble the flu and can take up to two months to appear. There is currently no specific treatment or cure for the virus or its symptoms.

The two-time Academy Award winner, 95, and his wife, a 65-year-old classical pianist, died within a week of each other before their bodies were found in February.

Authorities confirmed that Betsy Hackman died of natural causes associated with hantavirus pulmonary syndrome—a severe respiratory illness caused by exposure to hantavirus, typically spread through the droppings and urine of infected rodents.

Gene Hackman died from complications related to severe heart disease, high blood pressure, and Alzheimer’s just days after his wife, Betsy Hackman. Their bodies were found in February at their home in Santa Fe, New Mexico, along with their deceased dog, Zinna. Two of their other dogs were found alive on the property.