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Health Headlines - August 2

Posted Oct 23 2008 2:24pm
Infections That Pets Carry

Caring for animals and pets offers a tremendous learning experience for children - it can teach them responsibility, gentleness, and respect for nature and other living beings. Like adults, children can benefit from the companionship, affection, and relationships they share with their pets.

But it's not uncommon for animals and pets to transmit infections to humans, especially children. Before you give in to your child's pleas at the pet store, keep reading for more information about how to protect your child from infections carried by pets and animals.

How Do Pets Spread Infections?
Zoonotic infections, also called zoonoses, are infections transmitted through or from animals to humans. Like people, all animals carry germs. Some illnesses that are common among house pets - such as distemper, canine parvovirus, and heartworms - can't be transmitted to humans. But pets also carry certain bacteria, viruses, parasites, and fungi that can cause illness if they are transmitted to humans. Humans get these animal-borne diseases when they are bitten or scratched or have contact with an animal's waste, saliva, or dander. Pets are also more likely to carry ticks and fleas in their fur, and these organisms can also carry disease.

"The most severe infections can be fatal, such as rabies; most infections won't kill you, but the severity can range depending on your age and overall health," says Grant Morrison, MD, a family practitioner. For example, Dr. Grant says that exposure to Salmonella from handling turtles or iguanas may cause a healthy adult to get severe but temporary diarrhea, but in infants or people with chronic illness, exposure to Salmonella could be life threatening. That's because zoonotic infections are particularly dangerous to infants and children, pregnant women, elderly people, and people whose immune systems have been compromised by illness or disease (such as cancer or AIDS).

Common Infections That Pets Carry

Dogs and Cats
Dogs and cats are popular pets among children with families, but they may carry infections such as:

Campylobacter infection: Household pets and animals can transmit Campylobacter jejuni, bacteria that cause diarrhea, abdominal pain, and fever in people. The campylobacter bacteria may exist in the intestinal tract of an infected household or wild animal, and a person can become infected through contact with contaminated water, feces, or unpasteurized milk. More than 2 million cases of campylobacter infection occur each year in the United States and C. jejuni is now the leading cause of bacterial gastroenteritis. Campylobacter infections are contagious, especially among members of the same family and children in day care or preschools. Children with campylobacter infection are generally treated with antibiotics.
Cat scratch disease: A person who is bitten or scratched from a feline with Bartonella henselae bacteria may develop swollen and tender lymph nodes, fever, headaches, and fatigue, a condition known as cat scratch disease. The symptoms of cat scratch disease usually resolve without treatment; however, a doctor may prescribe antibiotics if the infection is severe. Cat scratch disease rarely causes any long-term complications.
Rabies: Rabies is a serious illness caused by a virus that enters a person's body through a bite or wound contaminated by the saliva from an infected animal. Animals that may carry the rabies virus include dogs, cats, raccoons, bats, skunks and foxes. Widespread immunization of dogs and cats has decreased the transmission of rabies in these animals and in people. Human rabies is rare in the United States: only five cases of rabies were reported in 2000. An effective vaccine is available for treatment following a bite with a potentially rabid animal.
Rocky Mountain spotted fever: Rocky Mountain spotted fever (RMSF) is carried by ticks that attach themselves to animal skin, particularly dogs. The ticks that cause Rocky Mountain spotted fever are infected by the Rickettsia bacteria, which can cause high fever, chills, muscle aches, and headaches, as well as a rash that may spread across the wrists, ankles, palms, soles, and trunk of the body. Rocky Mountain spotted fever is not contagious and can be treated with antibiotics.
Lyme disease: Like RMSF, Lyme disease is transmitted through the bite of an infected tick that may have hitchhiked into your home on your pet. Symptoms include a bull's-eye rash where the tick attached, followed by headache, fever, and joint or muscle pain. If treated with antibiotics during the rash stage, later complications can be prevented.
Dog tapeworm: Dipylidium caninum is the most common tapeworm of dogs and cats in the United States. Most cases of dog tapeworm infection in humans occur in children; they become infected when they swallow an infected flea. Symptoms of tapeworm infestation include itching around the anus, vague abdominal pain, and diarrhea. Tapeworms may be seen stuck to the skin around the anal area or in the feces. Children infected with Dipylidium caninum are treated with oral medication to kill the tapeworm.
Ringworm: Ringworm, also called tinea, is a skin infection caused by several types of fungi found in the soil and on the skin of humans and pets. Children can get ringworm from touching infected animals such as dogs and cats. Ringworm of the skin, or tinea corporis, usually is dry, scaly round area with a raised red bumpy border and a clear center. When the scalp is affected, the area may be flaky, red, or swollen. Often there are bald patches. Ringworm is treated with antifungal medications including shampoo, cream, or oral medicine.

Medical Care and Your 4- to 5-year-old

Regular well-child examinations by your child's doctor are essential to keep your child healthy and up-to-date on immunizations against many dangerous childhood diseases. A checkup also gives your child's doctor an opportunity to talk to you about developmental and safety issues and gives you an opportunity to ask any questions you might have about your child's overall health.

For Toned Look, Some Teens Use Supplements

Getting a sculpted look is a goal for many U.S. teens -— and while some are using dangerous supplements to get it, sizable numbers of girls and boys are engaging in more healthy strength-training, a survey found.

Study: Women Should Keep Their Ovaries

Most women getting a hysterectomy should keep their ovaries because the common extra step of removing them seems to do no good and might decrease their long-term survival, researchers report.

Children of smokers have more attention deficit

Women who smoke during pregnancy nearly triple the risk their children will be born with attention deficit disorder, Danish researchers said on Monday.

SIDS: Sudden and Silent

A lack of answers is partly what makes sudden infant death syndrome (SIDS) so frightening. SIDS is the leading cause of death among infants who are 1 month to 1 year old, but despite years of research and numerous studies, SIDS is still unpredictable and unpreventable. However, research into the causes of SIDS has led doctors to recommend steps parents can take to reduce the risk of SIDS in their infants. As more parents begin to follow that advice, the number of deaths from SIDS is dropping.

According to the National Institute of Child Health and Human Development (NICHD), the incidence of SIDS is greatest in infants younger than 6 months of age and increases during cold weather. African-American infants are two times more likely to die of SIDS than white infants, and Native Americans are about three times more likely than whites. More boys than girls fall victim to SIDS. Other potential risk factors include:

smoking, drinking, or drug use during pregnancy
poor prenatal care
prematurity or low birth-weight
mothers younger than 20
smoke exposure following birth
stomach sleeping

Foremost among the risk factors, however, is stomach sleeping. Numerous studies from Europe and Australia found a higher incidence of SIDS among babies placed on their stomachs to sleep than among those on their backs or sides.

Health Tip: Know Your Heart's Limits

Make monitoring your heart rate an integral part of your workout routine. It's a safer, more effective way to exercise, according to the American College of Sports Medicine.

Here's how to calculate your heart rate range:

Estimate your maximum heart rate by subtracting your age from 220.
Determine your lower-limit exercise heart rate: multiply your maximum heart rate by 0.6.
Calculate your upper-limit exercise heart rate: multiply your maximum heart rate by 0.9.
For most people, working out at the lower end of the heart rate range for a longer time is better than exercising at the higher end for a shorter period.

Health Tip: Sitting at the Computer

Sitting in front of a computer for a prolonged period can take its toll on your body.

Protect yourself against common computer-related aches and pains with these tips from the American Physical Therapy Association:

Get up every half hour and do some gentle stretches.
Keep your feet flat on the floor or consider using a foot rest.
Don't let your hands hover over the keyboard. This creates excess tension in your hands and arms.
Watch for lighting glare. Use the 20-20-20 rule: blink 20 times, and stare 20 feet away from the screen every 20 minutes.
Avoid movements that put your neck in an awkward position.

Food Fact:
Flipped burger.

What grills like a burger, tastes meaty on a bun -- but has a fraction of the fat? Grill up broad, flat portobello mushrooms, dress 'em up like burgers, and you'll enjoy a hearty sandwich that's far better for your heart than beef. Mushrooms have what the Japanese call umami, a meaty taste, and healthy cooks use that meatiness to advantage. And that meaty taste comes with a very impressive nutrition profile: No fat, no carbs and hardly any calories. Add sauteed cremini mushrooms to spaghetti sauce for depth of flavor and satisfying chewiness. Slice shiitakes for your next stir-fry.

Fitness Tip of the day:
Make it a "cardio commute."

We've got an easy tip for giving yourself an energy boost in the morning. Walk or ride your bike to the train station or bus stop. Or, try hopping off the bus a few blocks from your normal stop and walk the rest of the way. You'll arrive awake, alert and ready for work.

FAQ of the day:
What are the best carbs for diabetics?

The very best contain soluble fiber, such as oats, rye and beans. Soluble fiber forms a gel in the gastrointestinal tract, which slows the rise in blood sugar after a meal and gives insulin more time to clear sugar from the blood.
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