While a salmonella vaccine is in the works, researchers don't think it's suited for countries like the United States (Photo courtesy of the Centers for Disease Control)
Researchers are working on a new vaccine to prevent salmonella poisoning. But, Julie Grant reports, the researchers say it probably won’t help us when we’re faced with salmonella tainted tomatoes or alfalfa sprouts:
Transcript
Researchers are working on a new vaccine to prevent salmonella poisoning. But, Julie Grant reports, the researchers say it probably won’t help us when we’re faced with salmonella tainted tomatoes or alfalfa sprouts:
Salmonella poisoning affects about 20-million people worldwide each year and causes 200,000 deaths. A vaccine might sound like a good idea.
Arthur Thompson has been working on one at the Institute of Food Research in England. His group has found that salmonella relies on glucose for its survival. So they’re designing a vaccine to use that against the bacteria.
But Thompson thinks a salmonella vaccine should not be used to solve a problem that industrialized nations can already prevent.
“I don’t think it would be appropriate really, for something like this. I mean, I think in this case, it’s more a case of preventing the contamination in the first place, really.”
Thompson says the vaccine is better suited for people in developing nations where salmonella causes still causes typhoid fever.
There are parts of the country where up to 20% of families are saying ‘no’ to vaccines. (Photo by Bill Branson, courtesy of the National Cancer Institute)
Babies and young children get a lot more vaccines today than they did ten years ago. To most parents, it’s a chance to protect their children from more diseases. But there are pockets of places where lots of people are opting out of vaccines. Julie Grant reports that it has the Centers for Disease Control concerned:
Transcript
Babies and young children get a lot more vaccines today than they did ten years ago. To most parents, it’s a chance to protect their children from more diseases. But there are pockets of places where lots of people are opting out of vaccines. Julie Grant reports that it has the Centers for Disease Control concerned:
Heather Waltz has a five month old daughter. Most Americans her age have already started a series of vaccinations – to prevent everything from Hepatitis B, to Diphtheria, to Polio.
But Waltz’s little girl isn’t going to get those shots. Her mom worries they could cause things like autism, juvenile diabetes and even cancer.
“I think the jury’s still out, as far as what the research says. But there is enough anecdotal sort of stuff to make me aware and decide that, really, right at this point, vaccinating wasn’t what I wanted to do.”
Waltz is among a small, but growing number of parents who are becoming skeptical of vaccines.
Lance Rodewald is director of immunization services at the Centers for Disease Control.
He says more than 90% of American children are vaccinated. But there are parts of the country where up to 20% of families are saying ‘no’ to vaccines.
“And that’s getting to a rate of lack of protection of children that really can be a fertile ground for the spreading of diseases like measles. And we actually saw that last year.”
In one case last year, Rodewald says a child who wasn’t vaccinated caught the measles in Switzerland and brought it back to Arizona.
“The parents didn’t realize that the child had measles – brought him to the pediatricians office where there were babies that were too young to be vaccinated that got measles. And then that particular outbreak went through four generations of spread, from child to child to child to child before it was able to be contained.”
Measles can cause more than just a nasty rash. In rare cases, it can lead to death. Measles still causes 200,000 deaths around the world. But it’s been almost eradicated in the U.S. because of vaccines.
Rodewald says many parents are concerned about vaccines today because of a ten-year old scientific article that linked the vaccine for measles, mumps and rubella to autism. Rodewald says the science in that article proved to be wrong.
“The authors withdrew their names from the article. But this particular study set off a whole series of concerns about vaccines and autism that, to this day, is still talked about.”
Rodewald says many studies have been done and found no association, no cause and effect, between vaccines and autism.
It’s tough for parents to wade through all the information that’s out there these days. And there are so many vaccines to try to understand. Back in the mid-1990s, children were given 6 vaccines. Today, they’re supposed to get more than twice that many.
Mother Heather Waltz tries to keep up with it all and says she still plans to avoid vaccines.
Waltz: “For every bit of research and every article I find sort of helping me support my point, there’s a million other bits of research and articles saying that I’m a bad parent, or saying that I’m somehow damaging the health of the entire United States by not vaccinating my child. Just this idea that she could be a measles monster and just running around and infecting her classmates with measles or something like that, and that would be a terrible thing.”
Grant: “What do you think when you see that?”
Waltz: “It doesn’t make logical sense to me. Because to me, if you have 30 kids in a classroom, and my one isn’t vaccinated, wouldn’t my child be the one at risk? Not the public’s.”
But even if Waltz’s daughter doesn’t get vaccinated, she’ll probably be safe from these diseases. With so many other kids getting inoculations, most of the U.S. is not fertile ground for them to regain traction.
Consumer advocates say most soaps, shampoos, and cosmetics contain 1, 4 dioxane (Photo by Rebecca Williams)
Consumer advocates say your children might
be at risk because of the soaps you use. They say
most shampoos and cosmetics contain a chemical that
might cause cancer. Julie Grant reports they want
the government to clean up these products:
Transcript
Consumer advocates say your children might
be at risk because of the soaps you use. They say
most shampoos and cosmetics contain a chemical that
might cause cancer. Julie Grant reports they want
the government to clean up these products:
(sound of laughter)
Moxii Rose has been running around all afternoon. She’s
this tiny two and a half year old. She giggles as she dumps
her toys and spills juice on the carpet.
She’s excited when it’s time for a bubble bath.
(sound of running water and child in bathtub)
And so is her mother, Khalilah Pickings. Once Moxii gets into
the tub, she finally quiets down.
“And normally when we have bubble bath time, I just sit right
here. And let her do whatever she needs to do. Gives her a
minute to calm down, and me a minute to calm down.”
Khalilah says she hasn’t thought about it a lot, but figures if
the stores can sell kids bubble bath and lotion, they must
be safe.
But some consumer advocates aren’t so sure.
David Steinman started worrying about the bubble bath his
kids were using. He heard bubble bath might have
something called ‘1, 4 dioxane’ in it. The Environmental
Protection Agency lists it as probable carcinogen.
“I took the products they liked and some others that were
from other companies to a laboratory to have them analyzed, to see
if they did contain this chemical. And they all had it. Every
single product.”
Even the products labeled ‘natural’.
Now, you won’t find 1, 4 dioxane on ingredient lists on the
back of the bottle. It’s not added to soaps and detergents.
When other chemicals are combined, they create 1, 4
dioxane. It helps make soaps foamy and work well.
Steinman says that when children get in a warm bath, their
pores open and can soak the chemical right into their
systems.
Studies show that 1,4 dioxane causes cancer in lab animals.
Scientists are debating how much those findings in rats and
mice apply to people.
Bob Hamilton’s company sells soaps and dishwashing
liquids under the Amway label. He’s an expert on the
regulation of soap.
“There is not a concern based on the best scientific review
that has been done over many decades. The levels that are
found are minor contaminant levels that are well below any
concern levels as expressed by regulators in every country
around the world.”
The US government doesn’t really have any standards for
the amount of 1, 4 dioxane allowed in products. And even
though the EPA lists it as a probable carcinogen, the agency
says the tiny amount in consumer goods is still safe.
Consumer advocate David Steinman says the government
only looks at the amount 1, 4 dioxane in each product
individually. No one considers that we’re using bubble bath,
soap, lotion, and dishwashing detergent every day.
“When do a lot of little bits of chemicals become a whole
lot?”
Steinman wants consumers to force change. He wants
people to buy only the soaps that don’t contain 1, 4 dioxane.
But single mother Khalilah Pickings says she’s already
overwhelmed with trying to be a good mom. How is she
supposed to know whether products have 1, 4 dioxane and if
it’s a real concern or just something environmentalists are
worrying too much about?
“If it hasn’t hurt anyone and if people aren’t like getting
cancer or some crazy weirdo Ebola virus soap-causing
disease, just leave me alone. I’ve got enough to think about, okay?
It’s just me and her here. I don’t have time to think about
the soap that I’m using.”
Pickings says she doesn’t really trust the government, but
she has to assume if it allows the products on the market,
they won’t hurt her little girl.
A Dow Chemical sign on the Tittabawassee River stating 'Enter At Your Own Risk' (Photo by Vincent Duffy)
A sign on the Tittabawassee River, downriver from Dow Chemical Plant, stating to avoid contact with the soil and not eat the fish due to dioxin contamination (Photo by Vincent Duffy)
It’s been more than 50 years since Dow
Chemical Company stopped dumping dioxin into the
river flowing past its plant in Michigan. But the
company and government regulators are still arguing
over how to clean it up. Vincent Duffy reports:
Transcript
It’s been more than 50 years since Dow
Chemical Company stopped dumping dioxin into the
river flowing past its plant in Michigan. But the
company and government regulators are still arguing
over how to clean it up. Vincent Duffy reports:
(sound of backyard)
Kathy Henry’s backyard runs down to the bank of the Tittabawassee River.
It’s a beautiful view, but that’s not what Kathy Henry sees.
“When I look back there now, I see dioxin.”
You can’t really see the dioxin, but it is there. Dow Chemical started
dumping dioxin into the Tittabawasee river in the 1890s. Dioxin is believed
to cause cancer and damage reproductive systems. And, there are high
concentrations of dioxin not only in the Tittabawasee, but in all the water
and floodplains between the chemical plant and Lake Huron 50 miles
downstream.
Kathy Henry first found out about the dioxin seven years ago when a
whistleblower at the Michigan Department of Environmental Quality
warned local environmentalists about the contamination. She has wanted to
sell her house ever since.
“We’ve lived here for 24 years. We loved living in here. Now I’m afraid to
go out in my own yard. I just, psychologically, couldn’t stand living here
anymore. I had to get out.”
Dow says it will clean up any dioxin that’s proven to be dangerous to human
health, but the company has spent decades fighting with Michigan and the
US Environmental Protection Agency over how much of it is a threat.
Dow spokesman John Musser says there’s no proof anyone has gotten sick
because of the dioxin.
“We’re not seeing any impacts. We’re not seeing any cause for alarm. We’re
not seeing any imminent health threat. If it’s not a problem for humans or
the environment, then maybe the best thing to do is to leave it alone.”
But Michigan environmental officials are not so laissez-faire about the
contamination. They continue to warn residents about eating fish from the
rivers, about eating wild game killed in the region, and about swimming at
some beaches.
Robert McCann is with the state of Michigan. He says science is way past
the point of debating whether dioxin is dangerous.
“Study after study has shown that there are some very serious potential health
effects from being exposed to it, even at some lower levels over a long
period of time and those health effects do include things like cancer and
diabetes as well as some more minor health effects that can be caused from it.”
But Dow does debate whether dioxin is dangerous. John Musser says
Michigan and the EPA are using bad science based on dioxin exposure to lab
animals. He says Dow has human data from employees that show dioxin is
not as dangerous as people think.
“They were exposed at extremely high levels. And we’ve tracked their
health and their death records for 60 years and we’re not finding any ill
health effects.”
Attacking regulatory science is a common defense for industries. David
Michaels is an epidemiologist at George Washington University. He says
just like big tobacco questioned the link between smoking and lung cancer,
big business always questions the science.
“Companies know that by putting off the scientific debate for as many years
as they can they can keep doing the work that they’re doing and not be
disturbed. It works.”
For example, a recent meeting supposed to update residents about clean up
efforts turned into more of a debate between government scientists and scientists
hired by Dow. One member of the audience got sick of it.
“I’m not a geologist, I’m not a toxicologist, I’m just a resident that lives on
the river. And the last I knew dioxin was the most toxic substance known to
man. And what I’m seeing here is you guys trying to find excuses to justify
poisoning us.”
The EPA recently forced Dow to clean up four hot spots along the river,
including one spot with the highest concentration of dioxin ever found in the
United States.
But the last few months have had more set backs than
progress. In January, the EPA gave up trying to negotiate a clean up
agreement separate from Michigan’s. It said Dow’s proposals were going
backward.
Earlier this month the Region 5 director of the EPA was fired. Mary Gade
says it was because of her tough stance against Dow Chemical.
Dr. Robert McLean works on a West Nile disease project at the National WIldlife Health Center with a Carolina Chickadee (Photo courtesy of the US Fish and Wildlife Service)
There’s a new online map for tracking
wildlife diseases that threaten animals and
people. Chuck Quirmbach reports:
Transcript
There’s a new online map for tracking
wildlife diseases that threaten animals and
people. Chuck Quirmbach reports:
Diseases such as West Nile Virus, Chronic Wasting Disease, Avian Flu, and
others are now often in the news. A website partly developed by the US
Geological Survey aims to track reports of the disease outbreaks around the
world.
Veterinarian Josh Dein leads the project. He says he hopes both health care
professionals and the general public use the online map.
“One of the things you can do is say ‘what’s happening in my neighborhood,
what’s happening in my state, my country?’ And maybe I’m traveling to
someplace else. Maybe I want to look to see what’s happening somewhere else.”
Dein says the map also allows people to narrow their search to specific countries, types of
disease and affected species.
A layer of smog over upstate New York at sunset on October 21, 2000 (Photo courtesy of the Earth Science and Image Analysis Laboratory, Johnson Space Center)
A new report says smog can contribute to
premature death. Rebecca Williams reports:
Transcript
A new report says smog can contribute to
premature death. Rebecca Williams reports:
Ozone is a main ingredient in smog – it comes from cars and smokestacks and
other sources.
The National Academies of Science report says ozone can send people to the
hospital, and even lead to earlier death. That’s because ozone can damage
your lungs and make it harder to breathe. It can be especially bad for
kids, older people, and people with lung diseases.
Dan Greenbaum is the president of the Health Effects Institute. He worked
on the report.
“It just reinforces the risks of exposure to ozone are there, they’re
significant and people really should be paying attention to alerts when
there are high ozone days.”
Ozone alerts mean even healthy people should avoid working or exercising
outdoors during the day.
The EPA recently tightened the ozone standards. But the agency’s scientific
advisory committee said the standards should be tightened even more.
The back of a female patient with a doctor who is using a stethoscope to listen to her lungs. (Photo courtesy of the National Cancer Institute)
Public health advocates say governments and
individuals should take more precautions as global
warming continues. Chuck Quirmbach has more:
Transcript
Public health advocates say governments and
individuals should take more precautions as global
warming continues. Chuck Quirmbach has more:
Most scientists say a warmer climate will bring some good things for public health, like
longer food growing seasons in parts of the world. But Dr. Georges Benjamin also
believes the forecasts of what bad things might happen.
“We know that climate change certainly could increase air pollution, leading to increases
in things like asthma, allergy and chronic obstructive pulmonary disease”
Benjamin heads the American Public Health Association. The group is issuing a
blueprint for health professionals and the public to combat climate change.
The effort includes calls for government to provide more shelter and health monitoring
during heatwaves, and recommendations for people to be more careful during high
temperatures and heavy rainfalls. The group will also urge Congress to consider health
issues when it debates legislation to curb global warming.
While a salmonella vaccine is in the works, researchers don't think it's suited for countries like the United States (Photo courtesy of the Centers for Disease Control)
