May 28 07:01 PM US/Eastern
By MIKE STOBBE
AP Medical Writer
ATLANTA (AP) - Scientists have identified a lethal new virus in Africa that
causes bleeding like the dreaded Ebola virus. The so-called "Lujo" virus
infected five people in Zambia and South Africa last fall. Four of them died,
but a fifth survived, perhaps helped by a medicine recommended by the
scientists.
It's not clear how the first person became infected, but the bug comes from a
family of viruses found in rodents, said Dr. Ian Lipkin, a Columbia University
epidemiologist involved in the discovery.
"This one is really, really aggressive" he said of the virus.
A paper on the virus by Lipkin and his collaborators was published online
Thursday on in PLoS Pathogens.
The outbreak started in September, when a female travel agent who lives on the
outskirts of Lusaka, Zambia, became ill with a fever-like illness that quickly
grew much worse.
She was airlifted to Johannesburg, South Africa, where she died.
A paramedic in Lusaka who treated her also became sick, was transported to
Johannesburg and died. The three others infected were health care workers in
Johannesburg.
Investigators believe the virus spread from person to person through contact
with infected body fluids.
"It's not a kind of virus like the flu that can spread widely," said Dr.
Anthony Fauci, director of the National Institute of Allergy and Infectious
Diseases, which helped fund the research.
The name given to the virus—"Lujo"—stems from Lusaka and Johannesburg, the
cities where it was first identified.
Investigators in Africa thought the illness might be Ebola, because some of the
patients had bleeding in the gums and around needle injection sites, said
Stuart Nichol, chief of the molecular biology lab in the CDC's Special
Pathogens Branch. Other symptoms include include fever, shock, coma and organ
failure.
Genetic extracts of blood and liver from the victims were tested at Columbia
University in New York, and additional testing was done at CDC in Atlanta.
Tests determined it belonged to the arenavirus family, and that it is distantly
related to Lassa fever, another disease found in Africa.
The drug ribavirin, which is given to Lassa victims, was given to the fifth
Lujo virus patient—a Johannesburg nurse. It's not clear if the medicine made a
difference or if she just had a milder case of the disease, but she fully
recovered, Nichol said.
The research is a startling example of how quickly scientists can now identify
new viruses, Fauci said. Using genetic sequencing techniques, the virus was
identified in a matter of a few days—a process that used to take weeks or
longer.
Along with Fauci's institute, the National Heart, Lung, and Blood Institute and
Google also helped fund the research.
__
On the Net:
PLoS Pathogens: http://www.plospathogens.org/home.action
