Cryptococcus gattii: Deadly strain of fungus spreading in the US
By: Terrence Aym
An airborne killer fungus that often spreads rapidly has jumped the border from Canada into Oregon. Known scientifically as Cryptococcus gattii, the fungus is normally found in the tropics.Shocked experts found the fungus growing in the Pacific Northwest the worst possible way: it killed...
How viruses and bacteria cause infection
By: Tami Port MS
Both bacteria and viruses can cause disease. However, these two types of infectious agents achieve their pathogenicity in different ways. Infection itself simply means that a pathogen has entered the body, but does not necessarily equate with disease, since a person can be infected by...
By: Sean Quinn - 564552
Researchers have recently published a study on a fungal infection commonly found in the tropics, that has spread into British Columbia and is now spreading south into the Pacific Northwest. Infection is rare, with only 21 infections to date in the U.S., but researchers...
Cryptococcus gattii: Deadly strain of fungus spreading in the US
By: Brenda Schurrer-Maro
Cryptococcus gattii, or c. gattii, is a relatively new strain of airborne fungus affecting Canada's Vancouver Island since 1999, and more recently moving into the Northwest United States. Before its discovery on Vancouver Island, it was believed to affect only tropical and sub-tropical regions of...
Cryptococcus gattii: Deadly strain of fungus spreading in the US
By: Shirley Love
I recall a commercial from a couple of decades ago that warned us that “It’s not nice to fool Mother Nature!” I would like to add to that catch phrase, and issue an even more dangerous warning when I say, ”It&rsquo...
The spread of flu in various weather conditions
By: D. Vogt
Why is there a flu season? It's a surprisingly difficult question to answer. In most cases, the traditional and somewhat superstitious equations between viral infections and weather turn out not to hold water - for example, you catch cold from being exposed to the cold...
How do flu viruses combine to form a new virus?
By: D. Vogt
All viruses mutate, or combine their genetic material in new forms. In the process, they can create what to the human immune system are essentially new viruses, or more accurately new strains of existing viruses, to which the body's immune system has not prepared a...
By: D. Vogt
As we know from the news and, all too often, from our own personal experiences in the fall and winter flu season, the effect of flu viruses that mutate is that they are able to overcome the body's existing immune defences. This is both the...
By: D. Vogt
Influenza is one of the most pesky and occasionally frightening of common human viruses: it is more harmful than the common cold, yet mutates and combines to form new viruses very quickly, so that one cannot simply escape it through a long-term vaccine like those...
By: D. Vogt
Avian flu or bird flu refers to strains of the influenza virus which circulate among bird populations - in particular, among chickens. In general terms, there is nothing particularly distinctive about bird flu compared to human flu other than its usual victims, and on occasion...

 

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