Gene Hackman’s spouse Betsy Arakawa was reportedly in a vulnerable state, battling a rare rodent-borne illness, while her husband, who was suffering from dementia, was unable to provide aid according to a recent report.

Authorities are slowly beginning to piece together Arakawa’s movements in the days leading up to her death. 

On February 9, she picked up their dog Zinna from the veterinarian after the pet had undergone surgery, as disclosed by Sheriff Adan Mendoza from Santa Fe County.

This event potentially explains why their cherished 12-year-old Australian Kelpie mix was discovered lifeless in a crate, mere feet away from Arakawa’s body.

Police confirmed on Friday that Arakawa, 65, succumbed to Hantavirus Pulmonary Syndrome (HPS) in her bathroom somewhere around February 11.

That day, possibly hours before her death, Arakawa sent an email to her massage therapist before visiting a grocery store in the afternoon, The New York Times reported.

She was also caught on CCTV visiting a pharmacy where she was wearing a face mask, which friends said she often did to avoid transporting any illnesses to her medically vulnerable, older husband.  

Arakawa also stopped at a local pet food store later the same afternoon before returning to her local area at approximately 5.15 pm, the sheriff said.

She did not respond to any emails after that day, leading police to believe that was the period in which she passed. 

At some point after returning home, she began to decline rapidly. She eventually headed to the bathroom – her final resting place. 

She was found lying on the floor with her head next to a space heater and thyroid medication pills scattered around her.

Authorities have determined that Arakawa died of a lung infection spread from rats,  in the latest twist in the case.

Medical investigators in New Mexico said in a press conference on Friday that the 65-year-old was infected with hantavirus which caused a deadly build-up of fluid in her lungs, known medically as hentavirus pulmonary syndrome (HPS).

HPS is so rare in the US that only one or two people die every year, and there have only been around 1,000 cases in the past three decades, mostly among farmers, hikers and campers and homeless populations.

The virus is spread through the inhalation of airborne particles containing the virus, which is typically found in the urine, droppings, or saliva of infected rodents.

HPS, which initially presents with flu like symptoms, can progress rapidly, leading to breathing problems, low blood pressure, and organ failure.

Arakawa may have caught the ultra-rare but deadly virus from the garage of the couple’s mansion, experts have said. 

DailyMail.com understands that while there was no rodent activity in the main house, there were rodent droppings in the couple’s garage and outhouses.

Specialists told this website Arakawa could have picked HPS up from cleaning those areas.

Hackman and Arakawa’s dog was also found dead in the house. Authorities note that while there is evidence that dogs can catch the virus, the animals do not show symptoms and there are no recorded cases of them passing the virus on to human

Unforgiven star Hackman may have wandered around the sprawling 9000 square foot home, lost and confused, for seven days – without his partner of three decades by his side to feed and care for him, or look after their three treasured dogs,

Left to fend for himself and with his wife’s body decomposing in their bathroom, Hackman, who was already in ‘very poor health’, went without food.

An autopsy showed his stomach was empty at the time of his death.

He was found dead with his cane and sunglasses by his side in a room just off the kitchen following an apparent fall – hinting he may have been on his way out of the home before his weak heart gave in.

His pacemaker’s last recorded activity was on February 18 – but help would not arrive until over a week later.

The reclusive couple’s dogs, who were lovingly cared for by the couple, were also left alone.

Their pet Zinna, who had been picked up by Arakawa from a veterinary hospital on February 9 – two days before her death – was found dead in a a kennel in a bathroom closet about 10 to 15 feet from Arakawa’s partially mummified remains.

Officials believe the animal had been crated due to the recent medical care it had received.

A German Shepherd named Bear and a second dog named Nikita were found running around the 12 acre property – with a dog door allowing them access to food and water.

The dogs were discovered loose when the mummified bodies of Hackman and Arakawa were discovered on February 26 by two maintenance workers.

Dr. Heather Jarrell, Chief Medical Investigator for the state of New Mexico, said their deaths had both been ruled as natural, and that no signs of internal or external trauma were found.

This followed days of intense speculation around the seemingly mysterious deaths.

Chief Medical Investigator Heather Jarrell confirmed Hackman was in a ‘very poor state of health’ prior to the events that led to his death. 

‘He was in a very poor state of health. He had significant heart disease, and I think ultimately that’s what resulted in his death.’

Officials had also said that there was no trace of carbon monoxide in the bodies of the couple.

Hackman’s daughter Elizabeth had earlier floated a theory that the couple had died from carbon monoxide poisoning, which authorities officially quashed last week.

She told TMZ that the family believed their deaths came about after inhaling the toxic fumes.

Hackman was a five-time Oscar nominee who won for The French Connection in 1972 and Unforgiven two decades later.

Hackman met Arakawa, a classically trained pianist who grew up in Hawaii, when she was working part-time at a California gym in the mid-1980s.

They soon moved in together, and by the end of the decade had decamped to Santa Fe.

A naturally private man, Hackman was labelled a recluse as he remained out of the public eye for years on end following his retirement from the movie industry. He retired from acting in 2004.

Friends occasionally shared glimpses of his post-acting life, including social media shots of fishing expeditions – while paying tribute to his silver screen triumphs. He would also occasionally be spotted pedaling around Santa Fe on a bicycle.

The couple´s stucco, Pueblo-revival style home sits on a hill in a gated community at the southern tip of the Rocky Mountains. Santa Fe is known as a refuge for celebrities, artists and authors.

Hackman dedicated much of his time in retirement to painting and writing novels far from Hollywood´s social circuit.

He served for several years on the board of trustees at the Georgia O´Keeffe Museum in Santa Fe, and he and his wife were investors in local businesses.