New Fish Virus Becoming Long-Term Threat?

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes. The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month. The GLRC’s David Sommerstein reports:

Transcript

Biologists are concerned a new fish virus may become an ongoing threat in the Great Lakes.
The virus caused a fish die-off in Lake Ontario and the St. Lawrence River last month.
The GLRC’s David Sommerstein reports:


Viral Hemorrhagic Septicemia is common in saltwater fish in the Pacific Northwest,
but somehow the virus hopped into the freshwater fish of Lake St. Clair and Lake Ontario
last year. Then, last month, the virus killed hundreds of fish in the St. Lawrence River.
Scientists are trying to determine if the virus is a long-term threat to the Great Lakes
fishery:


“You know, that’s kind of the million dollar question.”


John Farrell directs the Thousand Islands Biological Station. He says many
fish species may become infected with the virus but not show symptoms:


“They may serve as a reservior for the virus. There’s a potential
that the virus could cycle over time, but may be with us for a long time to come.”


Conservation officials are most worried about muskies, trout and salmon – native
fish that anglers love to catch.


For the GLRC, I’m David Sommerstein.

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Pet Health Records to Help Track Bird Flu?

Health experts say the medical records of cats and dogs could serve as an early warning system for diseases such as avian flu. The GLRC’s Rebecca Williams has more:

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Health experts say the medical records of cats and dogs could serve as an
early warning system for diseases such as avian flu. The GLRC’s
Rebecca Williams has more:


The health records of thousands of dogs and cats throughout the country
are tracked by the National Companion Animal Surveillance Program.


Larry Glickman helped design the system. He’s an epidemiologist at
Purdue University. He says it was originally designed to track anthrax or
plague outbreaks in pets. Glickman says now, the system could be used
to monitor pets for avian flu symptoms.


“What we’re concerned with in the U.S is for example, a pet animal like a
cat will come in contact with a bird that is sick or even died of avian
influenza, then the cat will pick up that virus and will become infected,
and the very same day it might climb in bed with people and transmit
that virus to people.”


Glickman says the system can pinpoint areas where quarantines are
needed… to slow the spread of disease in both pets and people.


For the GLRC, I’m Rebecca Williams.

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A Closer Look at Mercury Hair Test

  • Hair is now a way to test people for mercury levels, as opposed to more invasive tests of blood and urine. (Photo by Anna Miller)

Health officials are experimenting with another way to gauge the level of mercury in people who eat a lot of fish. The only test sample needed is… hair. The Great Lakes Radio Consortium’s Chuck Quirmbach
reports:

Transcript

Health officials are experimenting with another way to gauge the level of mercury in people who eat a lot of fish. The only test sample needed is… hair. The Great Lakes Radio Consortium’s Chuck Quirmbach reports:


Doctors can already test your blood and urine for mercury. Now, as a less invasive technique, some health officials can test the hair near your scalp for the toxic chemical. There’s some debate over the quality of the tests, the lab analyses, and over what a high test reading means. The federal health warning for mercury in hair is one part per million. But that’s for susceptible populations like an unborn fetus.


Jack Spengler is a professor of environmental health at Harvard University. he recently ate a lot of fish and says his hair tested out at 3 parts per million of mercury.


“But I’m not going apoplectic about it because I know if I just watch my consumption, I can moderate that over time… and there’s that safety margin…that I suspect I’d have to be much higher for much longer to really have symptoms. ”

Prolonged high levels of the most toxic form of mercury, methyl mercury can trigger various health problems in adults such as memory loss and cardiovascular damage.


For the Great Lakes Radio Consortium, I’m Chuck Quirmbach.

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Study: Time Outdoors Helps Kids With Adhd

A little exposure to natural outdoor areas might go a long way toward easing the symptoms of attention deficit hyperactive disorder in kids. The Great Lakes Radio Consortium’s Tom Rogers has more:

Transcript

A little exposure to natural outdoor areas might go a long way toward
easing the symptoms of attention deficit hyperactive disorder in kids.
The Great Lakes Radio Consortium’s Tom Rogers has more:


Previous studies linking the outdoors to relaxation prompted University
of Illinois researchers to survey the parents of more than 400 children
diagnosed with ADHD. The researchers asked parents to monitor
their kids’ behavior and performance after play or study periods
indoors, outdoors in an urban setting like a parking lot, and outdoors
in greener areas.


Francis Kuo co-authored the study. She says the natural settings
seemed to improve symptoms.


“This doesn’t have to be something spectacularly natural. Just getting
your kid out in a green, tree-lined street would be good, or in the
backyard, or even the neighborhood park. You don’t have to take them
to Yosemite for these benefits.”


The study didn’t make any conclusions about whether nature could take
the place of medication, but Kuo says there’s a real potential that it
could at least help kids who don’t tolerate drug treatment well. The
study appears in The American Journal of Public Health.


For the Great Lakes Radio Consortium, I’m Tom Rogers.

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Survey: Parents Missing Important Asthma Triggers

New research suggests that while parents of children who have asthma try to protect their youngsters from the things that trigger attacks, those measures often aren’t very helpful. The Great Lakes Radio Consortium’s Michael Leland reports:

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New research suggests that while parents of children who have asthma
try to protect their youngsters from the things that trigger attacks,
those measures often aren’t very helpful. The Great Lakes Radio
Consortium’s Michael Leland reports:


Researchers at the University of Michigan found 80 percent of the
parents they surveyed were doing something to prevent attacks, but
often missed important measures. For example, a quarter of the parents
said a smoker lived in the same house as a child with asthma, but they
hadn’t done anything about it.


In one case, the parent of a child with pollen-triggered asthma bought
a new mattress cover, but didn’t close windows to keep pollen out of
the house.


Dr. Michael Cabana is a U of M pediatrician who led the study. He says
many parents also needlessly buy products they think will lessen asthma
symptoms.


“A lot of times, parents may get more information from other commercial
sources more often than the time they have to spend with either their
primary care doctor or their doctor who might be a sub-specialist in
asthma. So I think physicians have to do a better job putting that
information into perspective.”


Dr. Cabana suggests parents talk to their child’s doctor about asthma
triggers before spending money on asthma-related products.


For the Great Lakes Radio Consortium, I’m Michael Leland.

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Insecticides to Curb West Nile Best Choice?

  • The Culex pipiens quinquefasciatus mosquito - one of the mosquitoes responsible for the transmission of West Nile virus. (Photo courtesy of the USGS.)

Some health experts and politicians are struggling with balancing the risk of West Nile virus with the perceived hazards associated with spraying insecticides to kill the mosquitoes carrying the virus. The big question is – to spray or not to spray? Last year… public health officials in many communities decided to spray pesticides on adult mosquitoes, hoping to reduce the chance of West Nile virus infection in humans. But spraying was met by a public outcry from some residents concerned about the immediate and possible long-term health effects of the chemicals. This year, some health departments have chosen to focus their control efforts on killing mosquito larvae before they hatch with chemicals that are relatively benign. Others still plan to spray. The Great Lakes Radio Consortium’s Karen Schaefer reports:

Transcript

Some health experts and politicians are struggling with balancing the
risk of West Nile virus with the perceived hazards associated with spraying
insecticides to kill the mosquitoes carrying the virus. The big question is –
to spray or not to spray? Last year… public health officials in many
communities decided to spray pesticides on adult mosquitoes, hoping to reduce
the chance of West Nile virus infection in humans. But spraying was met by a
public outcry from some residents concerned about the immediate and possible
long-term health effects of the chemicals. This year, some health departments
have chosen to focus their control efforts on killing mosquito larvae before
they hatch with chemicals that are relatively benign. Others still plan to
spray. The Great Lakes Radio Consortium’s Karen Schaefer reports:


Last year there were more than 4,000 reported cases of West Nile virus
in the United States. The virus hit some Great Lakes states especially
hard. In Ohio, in Cuyahoga County – which surrounds Cleveland – 211 cases
were confirmed and 14 people died. The County’s health district decided to
do a sero-survey, taking blood samples from about 1200 residents to
find out just how many people actually got West Nile virus without noticing
any symptoms. Assistant Administrator Terry Allen says the results were
surprising.


“We found that between four and about six and a half-percent of
residents were exposed to West Nile virus. That equates to perhaps 50 to
80,000 people in Cuyahoga County that were exposed last year.”


Allen concedes that one way of looking at those figures is to see that the
number of deaths in the infected population was extremely low. But Allen is
concerned that a new outbreak of West Nile could infect thousands of people
who weren’t exposed last year and could cause even more deaths. So he says
the county has decided to take all possible precautions – including spraying
a pesticide on adult mosquitoes in areas where human cases are reported.


“You have to put this in context. Most counties in Ohio do not
spray for mosquito control.”


That’s Barry Zucker, president of the Ohio Coalition Against the Misuse of
Pesticides. He’s one of many county residents who oppose spraying.


“What the doctors tell us and what the medical studies tell us
is that there are real and potential health consequences from pesticides –
everything from upper respiratory diseases to possible neurological damage
to possible increase in breast cancer. The bottom line is that the pesticide
spraying for adult mosquitoes does not work.”


Others have come to the same conclusion. Bill Tomko is president of the
village council of the Cleveland suburb of Chagrin Falls.

“Our concerns relative to the county board of health was they
didn’t really have any data that indicated that the spraying would do any
good. And we became quite concerned that it was being done to have the
appearance of action in order to quell the emotional response of, you
know, ‘Do something, protect me.'”


Tomko say his community is one of many in the region that have decided not
to spray.


“My first reaction is just to extrapolate from the medical
profession when you’re looking at spraying versus not spraying, first do no
harm. The better way to do it is to apply individual protection
measures and to go after the breeding of the mosquitoes themselves, which is
what we adopted to do in Chagrin Falls by adopting a larvacide program.”


Tomko says his community will pepper catch basins and areas of standing
water with a chemical briquette that kills only mosquito larvae. Combined
with a reduction of breeding sites like removing old tires, continued
surveillance, and a public information campaign about the need for personal
protection, Tomko hopes to keep residents safe from infection by West Nile
virus. Last year, no one in Chagrin Falls got sick.


But Cuyahoga County Health Director Tim Horgan says, with the high infection rate seen
last year in urban areas, he just can’t take that risk. So in addition to larvacide,
surveillance, and all the rest, he says the county will use pesticide sprays
if conditions warrant. Health Director Horgan warns that even residents on
the county’s no-spray list could see pesticide spraying in their
neighborhoods this summer.


“With the problems we had last year, we might have areas where’s
there’s a number of houses on an individual street where people would rather not be
sprayed. And then we might have a case or two of human disease right in that area. If
that happens to us this year, we’re going to notify people on the list, let them
know we’re going to be there. But I think we’re going to try to go in and
make sure that area gets sprayed and that’s very consistent with the
recommendations of the CDC.”


But even the head of the Centers for Disease Control admits there’s not
enough good scientific evidence to be sure spraying works. So while some
health districts such as Cuyahoga County and the city of Cleveland plan to
spray, Chagrin Falls and many other communities do not. What all health
officials do agree on is that avoiding getting bitten is the best way to
keep West Nile at bay.


For the Great Lakes Radio Consortium, I’m Karen Schaefer in Cleveland.

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Monkeypox Virus in the Midwest

Public health officials in the Midwest are trying to control a virus outbreak… believed to be linked to infected prairie dogs sold as pets. The Great Lakes Radio Consortium’s Sean Crawford reports:

Transcript

Public health officials in the Midwest are trying to control a virus outbreak…
believed to be linked to infected prairie dogs sold as pets. The Great Lakes Radio
Consortium’s Sean Crawford reports:


There are several confirmed cases of monkeypox now and more are expected.
Authorities are working to track down more than 100 customers of a
suburban Chicago exotic pet dealer.


Dr. Craig Conover with the Illinois Public Health Agency says those who purchased
prairie dogs during the past two months might be at risk.


“We’re making every effort to contact them personally. Many of the individuals are out
of state so the names of such individuals have been transmitted to other state health
departments.”


Conover says some prairie dogs later were traded at swap meets… making it more
difficult to locate them. This is the first time monkeypox has shown up in the
Western hemisphere. While similar to smallpox, it’s usually not as serious, but can
result in fever, chills, and rashes.


For the Great Lakes Radio Consortium, I’m Sean Crawford.