Yosemite National Park expanded a warning about the deadly hantavirus to 230,000 more recent visitors and confirmed on Thursday that a ninth person had contracted the virus, which has already killed three people.

The Californian, the latest person confirmed to have been infected with hantavirus, had stayed in Yosemite in July and has already recovered, National Park Service spokesman John Quinley said.

Yosemite said it had previously alerted 30,000 visitors, who slept in two locations where officials believe the nine visitors were infected, but expanded the warning by sending emails to 230,000 more who stayed elsewhere out of an abundance of caution, Quinley said.

For those of you that would like to read about this particular virus, here is a link:  http://en.wikipedia.org/wiki/Hantavirus

***UPDATE***

Upon further research I happen to find the following, I thought about it and this may be of real concern to some of us, especially the ones that travel.

The entire article is worth reading and please take note of the countries and different names for the virus they have used.

 Is the Hajj walking into a deadly virus zone?

Read at: http://english.pravda.ru/health/28-09-2012/122292-hajj_virus-0/

The article states the following: A sixty-year-old Saudi man is dead, after contracting the until now unknown strain of Novel coronavirus.....

If you happen to be wondering what coronavirus is, wikipedia states:

Coronaviruses primarily infect the upper respiratory and gastrointestinal tract of mammals and birds. Four to five different currently known strains of coronaviruses infect humans. The most publicized human coronavirus, SARS-CoV which causes SARS, has a unique pathogenesis because it causes both upper and lower respiratory tract infections and can also cause gastroenteritis. Coronaviruses are believed to cause a significant percentage of all common colds in human adults. Coronaviruses cause colds in humans primarily in the winter and early spring seasons. The significance and economic impact of coronaviruses as causative agents of the common cold are hard to assess because, unlike rhinoviruses (another common cold virus), human coronaviruses are difficult to grow in the laboratory.

Link here: https://en.wikipedia.org/wiki/Coronavirus

When I looked at WHO I found this Sept 25, 2012:

http://www.who.int/csr/don/2012_09_25/en/index.html

for Sept 28, 2012:

http://www.who.int/csr/don/2012_09_28/en/index.html

and for Sept 29, 2012:

http://www.who.int/csr/don/2012_09_29/en/index.html

So how can this be true if when on Thursday the ninth person from Yosemite was confirmed with what I think maybe the same virus.

But I am no epidemiologist.