Sept. 13--LOS ANGELES -- An infectious-disease nightmare is unfolding: A new gene that
can turn many types of bacteria into superbugs resistant to nearly all
antibiotics has sickened people in three states including California, health
officials reported Monday.
The U.S. cases and two others in Canada all involve people who had
recently received medical care in India, where the problem is widespread.
A British medical journal revealed the risk last month in an article
describing dozens of cases in Britain in people who had gone to India for
medical procedures.
How many deaths the gene may have caused is unknown; there is no central
tracking of such cases.
So far, the gene has mostly been found in bacteria that cause gut or
urinary infections.
Scientists have long feared this -- a very adaptable gene that hitches
onto many types of common germs and confers broad drug resistance.
"It's a great concern," because drug resistance has been rising and few
new antibiotics are in development, said Dr. M. Lindsay Grayson, director of
infectious diseases at the University of Melbourne in Australia.
"It's just a matter of time" until the gene spreads more widely
person-to-person, he said.
Grayson heads an American Society for Microbiology conference in Boston,
which was buzzing with reports of the gene, called NDM-1 and named for New
Delhi.
The U.S. cases occurred this year in people from California,
Massachusetts and Illinois, said Brandi Limbago, a lab chief at the Centers
for Disease Control and Prevention.
Three types of bacteria were involved, and three different mechanisms let
the gene become part of them.
"We want physicians to look for it," especially in patients who have
traveled recently to India or Pakistan, she said.
What can people do?
Don't add to the drug resistance problem, experts say.
Don't pressure your doctors for antibiotics if they say they aren't
needed, use the ones you are given properly, and try to avoid infections by
washing your hands.
The gene can spread hand-to- mouth, which makes good hygiene very
important.
It's also why health officials are so concerned about where the threat is
coming from, said Dr. Patrice Nordmann, a microbiology professor at
South-Paris Medical School.
India is an overpopulated country that overuses antibiotics and has
widespread diarrheal disease and many people without clean water.
"The ingredients are there" for widespread transmission, he said.
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