Navigation Links
Same-sex mating by fungi spawned infection outbreak, evidence suggests

Same-sex mating between two less harmful yeast strains might have spawned an outbreak of disease among otherwise healthy people and animals on Vancouver Island, British Columbia, Howard Hughes Medical Institute geneticists at Duke University Medical Center have reported. The fungus, Cryptococcus gattii, is normally restricted to the tropics and subtropics.

The researchers said their findings provide important additional insight into the origin of the Vancouver Island outbreak, which began in 1999. Moreover, the evidence that sex played an important role in the pathogen's expansion may provide a useful model for the evolution of infectious diseases and parasites more generally, they said.

The team reported its findings October 9, 2005, in an advanced online publication of Nature. The work was supported by the National Institute of Allergy and Infectious Disease.

After extensive genetic analysis of fungal samples, the researchers suggest that mating between two less harmful fungal strains of the same sex or "mating type" produced the more virulent form. That strain has now taken hold and appears to be spreading -- perhaps driven by unique conditions in the Vancouver area, they said.

"While the number of people infected so far does not approach that of many other infectious diseases, this fungus is invading the central nervous systems of people who have no other apparent risk factors except having taken a walk in the park on Vancouver Island," said Joseph Heitman, M.D., Ph.D. "A year after infection, some of these people still have not fully recovered.

"The fungus appears to have become entrenched in the Vancouver Island area," he added. "It is unlikely to disappear, and all indications are that it is spreading. Our findings suggest that sex played a role in the expanded geographic range for this pathogen."

Since it was first documented in 1999, C. gattii has infected at least 100 people on Vancouver Island and the Canadia
'"/>

Source:Duke University Medical Center


Page: 1 2 3 4

Related biology news :

1. Crickets finicky mating behavior boosts biodiversity
2. PHACCS, an online tool for estimating the structure and diversity of uncultured viral communities using metagenomic information
3. Certain fish have a special mating preference
4. Space matters: Estimating species diversity in the fossil record
5. Weapon performance determines mating success in the collared lizard
6. Divergent mating systems and parental conflict as a barrier to hybridization in flowering plants
7. Sperm trading can resolve hermaphrodite mating conflicts
8. New study examines how sense of smell affects mating and aggression in mice
9. Male chimpanzees prefer mating with old females
10. Microfluidic chip helps solve cellular mating puzzle
11. Evidence of 600-million-year old fungi-algae symbiosis discovered in marine fossils
Post Your Comments:
(Date:10/16/2014)... 2014 NXT-ID, Inc. (NASDAQ: NXTD ... authentication company focused on the growing mobile commerce market ... Wocket™, the Smart Wallet, at the 13 th ... leading global conference on the intersection of technology and ... Anderson , founder and publisher of the Strategic News ...
(Date:10/15/2014)... ,Models of Life, is a non-traditional biophysics textbook and ... book is a journey of discovery into biological systems ... and biological regulation. It is about how our genes ... between the billions of cells in an organism. It ... between principles, which can be found on both large ...
(Date:10/15/2014)... in female mice to an enzyme activated by the ... resistant to respiratory infections than males. Now, an international ... bacterial pneumonia in female mice is linked to the ... that this enzyme is ultimately activated by the release ... lead by Professor Lester Kobzik at the Harvard University ...
Breaking Biology News(10 mins):NXT-ID Inc. to Present at 13th Annual FiRe Conference 2NXT-ID Inc. to Present at 13th Annual FiRe Conference 3New book about life as seen from physics 2
... from L-1 and Terminates Discussions ... ... ("L-1") (NYSE: ID ), a leading provider of identity solutions ... with Digimarc Corporation ("Digimarc") (Nasdaq: DMRC ). The,proposed transaction values ...
... Calif., June 30, 2008--In a breakthrough scientific study published ... of Sciences , scientists at the Burnham Institute for ... may be linked to Autism. The study demonstrated that ... in neural stem cells had smaller brains, fewer nerve ...
... College of Medicine and her colleagues discovered the first ... the intestines, causing diarrhea. The next step ... through which the enterotoxin interacts to cause diarrhea. ... be straightforward," said the professor of molecular virology and ...
Cached Biology News:Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 2Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 3Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 4Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 5Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 6Digimarc Board Approves $310 Million All-Cash Offer from L-1 Identity Solutions for Digimarc's ID Systems Business 7Researchers link early stem cell mutation to autism 2Integrins as receptors give insight into rotavirus and diarrhea 2
(Date:10/20/2014)... 2014 /PRNewswire/ - BIOREM Inc. (TSXV: BRM) ("Biorem" or "the Company") ... orders to $5.8 million and provides a good start to Q4.  ... North America and one in the Middle ... at record levels," said Peter Bruijns , President & CEO. ... of Q3 than they have been for any complete year since ...
(Date:10/20/2014)...  GenVec, Inc. (NASDAQ: GNVC ) today announced ... its board of directors effective on October 24, 2014.   Dr. ... as its chairman from June 2006 to November 2013.  During ... Governance and Audit Committees of the board.  ... dedicated service to GenVec, and its stockholders," said Wayne ...
(Date:10/20/2014)... OncLive® is pleased ... at Thomas Jefferson University has joined its Strategic ... Alliance Partnership program, the Sidney Kimmel Cancer Center ... awareness of the Center’s cutting-edge research programs, comprehensive ... and other health care professionals from the Sidney ...
(Date:10/20/2014)... Local veterinary surgeon, Dr. Tim McCarthy is seeking ... stem cells for dogs with osteoarthritis. Dr. McCarthy has ... clinical stem cell therapy for 7 years. The ultimate ... single injection of donor stem cells into one or ... inflammation in the treated joints. , Candidates for ...
Breaking Biology Technology:Zola P. Horovitz To Retire From GenVec Board 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 2Sidney Kimmel Cancer Center at Thomas Jefferson University Partners With OncLive 3Cascade Veterinary Referral Center Seeks Candidates for an Investigational Study of Stem Cells for Dogs with Arthritis 2
... Calif., June 23, 2011 Nile Therapeutics, Inc. (OTCQB: ... heart failure patients, today announced that it has completed ... securities consisting of an aggregate of 5,000,000 shares of ... 2,500,000 shares of common stock for aggregate gross proceeds ...
... 2011 GeoVax Labs, Inc. (OTCQB/OTCBB: GOVX), ... HIV/AIDS vaccines, announced today the opening of a third ... vaccine.  The Los Angeles-based AIDS Research Alliance (ARA) will ... site team: the AIDS Research Consortium of Atlanta and ...
... NEW YORK, June 22, 2011 Veredus Laboratories, a ... partner, STMicroelectronics (NYSE: STM ), today announced ... application that is able to detect 10 to 12 ... Escherichia coli (E. coli) responsible for the ...
Cached Biology Technology:Nile Therapeutics, Inc. Completes $2.5 Million Private Placement 2Nile Therapeutics, Inc. Completes $2.5 Million Private Placement 3GeoVax Initiates Third Site For Therapeutic Testing of Its HIV Vaccine 2GeoVax Initiates Third Site For Therapeutic Testing of Its HIV Vaccine 3GeoVax Initiates Third Site For Therapeutic Testing of Its HIV Vaccine 4Veredus Laboratories Develops Lab-on-Chip Solution to Detect and Differentiate Several Food-Borne Pathogens, Including Escherichia coli (E. coli) 2Veredus Laboratories Develops Lab-on-Chip Solution to Detect and Differentiate Several Food-Borne Pathogens, Including Escherichia coli (E. coli) 3Veredus Laboratories Develops Lab-on-Chip Solution to Detect and Differentiate Several Food-Borne Pathogens, Including Escherichia coli (E. coli) 4
Request Info...
Loading Buffer...
Epi-Grids™ Colony Grid Templates are easy-to-use griding templates that allow rapid organization of colonies from initial screening plates and for preparing precise master plates....
Request Info...
Biology Products: