
A rodent disease that can spread to humans and has no cure has killed several people in the US and prompted a health warning.
According to the Arizona Department of Health Services, cases of hantavirus, which spreads from rodents to humans through viral droplets from handling materials with animal urine, saliva or feces, are on the rise.
From early January to early July of this year, seven cases of Hantavirus Pulmonary Syndrome have been confirmed in Arizona. Three of them resulted in death.
The syndrome "is a severe and sometimes fatal respiratory illness caused by hantavirus infection," the agency said on July 12. In addition, there have been two hantavirus cases in California and one death.
Symptoms include fever, headache and muscle aches making it difficult to breathe.
Hantavirus has been found primarily in rats in the Grand Canyon State and is not spread by person-to-person contact. But it is not limited to a certain region.
It can be present in many areas in the southwestern region of the United States where there is rodent activity, even if rats are never seen.
Before the latest hantavirus cases, the last one in Coconino County was reported in 2016. The syndrome was discovered in 1993 after it infected a Navajo tribe living on the border of Arizona and New Mexico. About 80% of the population died at that time.
Public health officials recommend that residents who have experienced rodent activity follow certain cleanup procedures. They include spraying rodent droppings and nests with disinfectants such as bleach, sealing them up and disposing of them in the trash, and avoiding dusting infested areas.
Residents are also advised to prevent rodents from entering their homes by sealing holes larger than a quarter inch in diameter with wire or cement screen and using indoor rat traps.
"The best way to prevent infection with this disease is by carefully disinfecting and cleaning any rodent waste and avoiding contact with them," Dr. Aaron Glatt, chief of infectious diseases at Mount Sinai South Nassau Hospital, told NBC News. .
Arizona's hantavirus warning comes more than six months after a new case of 'zombie deer disease' in Yellowstone National Park sparked concerns that the fatal disease could spread between humans.