World Bulletin / News Desk
U.S. health officials have sent warnings to 39 other countries that their citizens who stayed in Yosemite National Park tent cabins this summer may have been exposed to a deadly mouse-borne hantavirus, a park service epidemiologist said on Tuesday.
Of the 10,000 people thought to be at risk of contracting hantavirus pulmonary syndrome from their stays in Yosemite between June and August, some 2,500 live outside the United States, Dr. David Wong told Reuters in an interview.
Wong said U.S. Department of Health and Human Services officials notified 39 countries over the weekend, most of them in the European Union, that their residents may have been exposed to the deadly virus.
The lung disease has so far killed two men and sickened four other people, all U.S. citizens, prompting the U.S. Centers for Disease Control and Prevention to issue a health alert.
Officials are concerned that more Yosemite visitors could develop the lung disease in the next month or so. Most of the victims identified so far were believed to have been infected while staying in one of 91 "Signature" tent-style cabins in the park's popular Curry Village camping area.
There is no cure for the disease, but early detection through blood tests greatly increases survival rates.
"I want people to know about this so they take it seriously," Wong said. "We're doing our due diligence to share the information."
Last week, park officials shut down the insulated "Signature" tent cabins after finding deer mice, which carry the disease and can burrow through holes the size of pencil erasers, infesting the double walls.
Officials are continuing to investigate additional possible cases of the disease, which has killed 64 Californians and about 590 Americans since it was identified in 1993, Wong said.
Early symptoms include headache, fever, muscle aches, shortness of breath and coughing. The virus may incubate for up to six weeks after exposure and can lead to severe breathing difficulties and death.
Experts say hantavirus, which kills 36 percent of those it infects, has never been known to be transmitted between humans.
Four of those known to be infected at Yosemite this summer slept in the insulated tent cabins. One slept elsewhere in Curry Village, located in a valley beneath the iconic Half Dome rock formation, and the sixth case remains under investigation.
One man from northern California and another from Pennsylvania died, while three victims have recovered and a fourth remains hospitalized, the state Department of Public Health said.
Nearly 4 million people visit Yosemite each year, attracted to the park's dramatic scenery and hiking trails. Roughly 70 percent of those visitors congregate in Yosemite Valley, where Curry Village is located.
Hantavirus is carried in viral particles inhaled from rodent feces and urine. People also can be infected by eating contaminated food, touching contaminated surfaces or being bitten by infected rodents.
Hantavirus previously infected two Yosemite visitors, one in 2000 and another in 2010, but at higher elevations.
The outbreak of myiasis, also known as screw worm, stems from deteriorating water and sanitation conditions.
The incursion largely follows water currents north from the Red Sea. Already more than 700 non-indigenous species have populated the Mediterranean
Joji Morishita, Japan's commissioner to the International Whaling Commission, said the new proposal is Tokyo's latest attempt to pursue sustainable whaling according to scientific principles.
In Europe, obesity is to blame for around 6.5 percent of all new cancers a year, or around 65,000 cases
Medical workers risking their lives to fight Ebola in West Africa talk about the challenges they face.
The woman 32, died at a fever hospital in the Nile Delta five days after she was admitted on contracting the virus, Hossam Abdel-Ghafar said
According to the World Health Organization, more than 80,000 children in Pakistan have not been immunized against polio
A total of 5,459 people have died in the worst Ebola outbreak on record, according the World Health Organization
Plague, a bacterial disease, is mainly spread from one rodent to another by fleas.
Felix Baez Sarria, the first Cuban to contract the deadly disease, will be treated in a Geneva hospital.
No Ebola cases detected for two incubation periods, says World Health Organization
The World Health Organization and leading global health specialists have criticised Saudi Arabia for failing to properly investigate the causes of MERS.
UNICEF predicts that the number of children orphaned by Ebola – which currently stands at nearly 200 – will reach as many as 2,000
UN Article 82 could mean millions in additional costs for drilling companies.
The figures, through Nov. 16, represent a jump of 243 deaths and 732 cases since those issued last Friday, and cases continue to be under-reported, the WHO said in its latest update.
The infectious disease causes total paralysis in a matter of hours. It affects mainly children under five years of age.