When hosting for the holiday season, be aware that one in six American suffer from either allergies or asthma. The American Academy of Allergy, Asthma & Immunology offers these tips for party throwers to help ensure their guests' asthma and allergy symptoms don't rear up.

Human-to-human transfer caused by contact with blood, respiratory secretion. The first Chinese case of a tick-borne disease called granulocytic anaplasmosis (HGA), which then led to person-to-person transmission of the disease, is described in a study by researchers at China's National Institute of Communicable Disease Control and Prevention.

But experts say study results aren't sufficient to counter current warnings.  Eating peanuts early in life may help prevent development of peanut allergy, according to a study that casts doubt on government health recommendations that infants and new mothers shouldn't eat peanuts.

Experts point out such a breed doesn't exist since allergens are also in canine skin. President-elect Barack Obama has inspired throngs around the world to say, "Yes, we can." But when it comes to finding a hypoallergenic dog for the White House, allergists are saying, "No, you can't."

Eight-week regimen better than 3 to 5 years of standard shots under skin, study finds. A Swiss-led study appears to point the way toward a faster, safer and less painful treatment for grass pollen allergy by using direct injections into the lymph node.

But researchers are working on new therapies to combat the problem. The number of U.S. children allergic to foods such as peanuts, milk and fish is rising rapidly.

Allergists say poor access, distrust of docs behind inequalities in treatment. Poor access to appropriate care and distrust of doctors are among the issues posing barriers to good asthma management, leading experts say.

Study found it effective, less cumbersome than traditional treatment. An experimental compound may represent an improvement over burdensome shots to treat allergies, not only because it would be delivered over a shorter course of time, but because it contains no actual allergens.

Food, cosmetics or a workplace chemical are often to blame, experts say. A wide variety of substances can cause the skin condition known as contact dermatitis, which often can be effectively managed with proper diagnosis and treatment, experts say.

Even though orally delivered "sublingual immunotherapy" (SLIT) is used to treat allergies in a number of countries, there are unanswered questions about its effectiveness, appropriate use, dosage and safety of administration, according to experts at the annual meeting of the American College of Allergy, Asthma & Immunology (ACAAI), in Seattle.

Consuming higher and higher doses built up tolerance, study shows. Consuming increasingly higher doses of powdered milk may help children with milk allergies overcome their condition, a new study suggests.

Poisonings, deaths pose severe public health threat, especially in underdeveloped areas. Snakebites pose an important but neglected threat to global public health, new research claims.

What to do to improve symptoms Allergens such as dust, animal dander, pollution and pollen can cause allergic conjunctivitis, a non-contagious condition that results in red, watery and itchy eyes.

Antibody pathway to mammary glands channels protection against intestinal bugs, study says. A molecule called CCR10 plays an important role in a mother's ability to pass along immunity to intestinal infections to her baby through breast-feeding, according to a U.S. study involving mice.

Using cooking appliances as heat source a hallmark of urban poverty, study notes. High levels of nitrogen dioxide emissions from gas stoves can aggravate asthma symptoms in inner-city children, especially pre-schoolers, a new study says.

Reactions lead to higher risk for asthma, other respiratory problems, CDC report says. The number of American kids with food allergies has soared 18 percent in the last decade, with an estimated 4 percent of children and teens now affected with the condition, a new federal report says.

But each reacts to different skin allergens, researchers say. Adults and children who have allergy patch tests are equally likely to react to skin allergens, but they tend to react to different types of skin allergens, a new study finds.

The combination nearly tripled the risk for children under 4, study found. Certain genetic variations previously identified as putting people at higher risk for asthma apparently only increase the risk of so-called early-onset asthma, which is disease that appears at 4 years of age or younger.

Signs that you're having a reaction But if you're allergic to a drug, you can have a reaction that ranges from mild to life-threatening. Penicillin and other antibiotics are among the most common causes of drug allergy.

Suggestions to avoid a problem If you are allergic to one or more foods, dining out does include possible risks. But food allergies don't mean you have to stay home to stay safe.

New ragweed regimens would be more convenient and effective, researchers say. A vaccine that protects against the miserable symptoms of ragweed allergy for a longer period of time -- and with fewer injections -- could be available in the coming years.

Study found doing so before 9 months decreased chances of skin condition by 25%. Babies who start eating fish before the age of 9 months have a lower risk of developing eczema, new research shows.

Drug should only be used to treat high fevers in children, experts say. Children given acetaminophen during the first year of life to reduce fever are more likely to develop asthma later on, a new study finds.

Current labels can be confusing, experts say. Responding to concerns that food labels aren't doing enough to alert consumers to the presence of allergens, or that the labels are just plain confusing, the U.S. Food and Drug Administration is hosting a public hearing Tuesday on what it can do to improve things.

Careful use is key When spending time outdoors -- especially at dawn or dusk -- protective clothing is the best way to guard against insect bites. But you also may need to protect yourself with insect repellent.

Most can be controlled, but you need to know what triggers them, experts say. If you are one of the 36 million Americans who suffer from seasonal allergies, there is nowhere in the United States that is free from pollen and other allergens this fall, a new report shows.

Sufferers more likely to be hospitalized, have lower quality of life, study finds. New research shows that obese people who have asthma are nearly five times more likely to be hospitalized for the problem and to have lower quality of life and worse control of the disease than those with asthma who are normal weight.

Experts develop sequence of instructions they say could help doctors evaluate risks. Vaccine safety experts say that almost all kids who are allergic to vaccines can receive vaccinations with close monitoring and a set of standard precautions.

Unhealthy proximity to major roads is public health concern future planners should address. More than 30 percent of U.S. public schools are within a quarter mile of major highways, which puts them in the "air pollution danger zone," says a University of Cincinnati study.

Allergists recommend consulting with school staff on avoidance strategies. Parents, teachers and school staff need to take measures to ensure the safety of the more than 2.2 million American students with food allergies, says the American Academy of Allergy, Asthma & Immunology.

Increasing temperatures, carbon dioxide levels add to discomfort of ragweed allergies. Add increased suffering for people with ragweed allergies to the list of problems caused by climate change, a new study suggests.

Since almost 11% of school-age kids have the disease, parents should take precautions. With the start of school here, the American Lung Association is advising parents of children with asthma to follow a simple checklist to ensure this sometimes debilitating disease doesn't hinder their child's academic year.

Research upends theory that repellant masks person's odor and interferes with bugs' senses. The reason DEET-based insect repellants are effective against mosquitoes is because the little blood suckers don't like the smell of the chemical, says a University of California, Davis study.

Everything from Christmas trees to fake snow can trigger symptoms, experts warn, It's easy for the holidays to become the season of sneezing, congestion and other woes for people with food or other allergies and asthma, say experts at the American Academy of Allergy, Asthma & Immunology (AAAAI).

Allergy symptoms can be caused by many things, commonly pet dander, dust, mold, grasses and trees, and certain foods. To keep symptoms from airborne allergens at bay, try these suggestions from the American Academy of Family Physicians.

Black henna tattoos contain a chemical called para-phenylenediamine (PPD) that can cause serious skin reactions, the American Academy of Dermatology (AAD) warns. PPD, commonly used for black hair dye, is added to natural henna in order to increase the intensity and longevity of the temporary tattoo.

Greek study finds gradual exposure builds resistance over time. Gradually exposing children with egg allergies to cooked egg could help them overcome the allergy, a new study reports.

They're much more inclined to have one removed than men, study shows. While most Americans who get tattoos are happy with their decision, women are much more likely than men to decide to get their markings removed, new research reveals.

A stomach bacterium called Helicobacter pylori may reduce a child's risk of developing asthma by as much as 50 percent, a new study suggests. H. pylori has been present in the human stomach probably since humans were humans. However, the germ began disappearing over the course of the 20th century with the introduction of antibiotics and cleaner water and homes.

Daily consumption while expecting ups odds of asthmatic offspring, study suggests.  If you've got a strong family history of food allergies or allergic asthma, you might want to think twice before munching a handful of nuts when you're pregnant.

Street vendors, fairs replacing trans fats with peanut oil -- all can spell trouble. While it may be hard to resist the sight and smell of food at summer festivals and fairs, people with food allergies need to be extra vigilant with such food, advises the American Academy of Allergy, Asthma & Immunology (AAAAI).

Creating a clean environment will help rid your home of dust mites, making breathing easier in people with allergies and asthma. Try these suggestions for getting rid of the microscopic insects from your home, courtesy of the American Lung Association