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Health News Results - 26

The tell-tale sign of Lyme disease is its bulls-eye rash, but that might be harder to spot in Black people, who are often diagnosed with more advanced disease than white people are, new research suggests.

The first sign of Lyme disease looks different on darker skin, and these differences are not usually reflected in images found in medical textbooks, explained study author Dr. Dan Ly. He...

Scientists in Japan have discovered yet another tick-borne virus that can make people sick.

The Yezo virus is transmitted by tick bites, and triggers fever and a reduction in blood platelets and white blood cells.

"At least seven people have been infected with this new virus in Japan since 2014, but, so far, no deaths have been confirmed," said Keita Matsuno, a virologist at Hokkaid...

Lyme disease can exact a significant mental toll as well as a physical one on its sufferers, a new study confirms.

Patients hospitalized for Lyme disease had a 28% higher incidence of mental disorders and were twice as likely to attempt suicide than people without Lyme, researchers report.

"These findings highlight the need for greater awareness in the medical community that patien...

When you're heading outdoors this summer, keep an eye out for ticks during and after your outing, health experts say.

These common parasites can transmit Lyme disease, a potentially serious illness.

Lyme disease is transmitted to people through the bite of an infected black-legged tick, also called a deer tick, explained Dr. Crystal Tank and Dr. Ashany Sundaram of Mountainside Medic...

You might not believe it, but Florida firefighter Carsten Kieffer was incredibly lucky when a 12-foot alligator leapt into his boat and chomped down on his right forearm.

Just about no one else thought so, and that went double for Kieffer: Both main bones in his arm were broken, and a big bite had been taken out of the back of his forearm. After the attack, the arm essentially dangled fro...

That growling dog may actually be terrified of you.

Fear and age-related pain are among the reasons why dogs are aggressive toward people, a new study suggests.

The findings could help two-legged folks better understand and prevent aggressive behavior, such as growling, barking, snapping and biting, according to Finnish researchers.

"Dogs' fearfulness had a strong link to aggr...

Getting bitten by a dog or wild animal is frightening, especially for kids, but a new study may help relieve some of the worry about catching rabies.

The rabies prevention treatment KEDRAB is safe and effective for patients 17 and younger, a groundbreaking pediatric clinical trial has shown.

The trial included 30 kids with suspected or confirmed rabies exposure who were treated with...

Climate change could increase people's risk of getting dangerous diseases from ticks, researchers warn.

The investigators conducted tests with brown dog ticks that carry the bacteria that cause the deadly disease Rocky Mountain spotted fever (RMSF) and found the ticks are much more likely to prefer feeding on the blood of people than dogs when temperatures rise.

Brown dog ticks are ...

The sting of fire ants can be painful and even deadly -- and the threat rises during fall across the southeastern United States.

At this time of year, fire ants move to warm surfaces such as concrete slabs or asphalt roads, according to the American College of Allergy, Asthma and Immunology (ACAAI), which urges people to take precautions.

A child can be stung walking through...

New insight into how pregnant women can pass the Zika virus to their fetus could point to ways to prevent it, researchers say.

Babies infected with Zika in the womb can have abnormally small heads (microcephaly) and other birth defects.

In this study, researchers examined placenta samples collected from pregnant women during the peak of Brazil's 2015 to 2016 Zika outbreak. S...

Although scientists haven't nailed down how the new coronavirus jumped to humans, a new study confirms mosquitoes aren't to blame -- and you won't get COVID-19 from a mosquito bite.

"While the World Health Organization has definitively stated that mosquitoes cannot transmit the virus, our study is the first to provide conclusive data supporting the theory," said study author Stephen H...

Tick monitoring and control is lacking in much of the United States despite a steady increase in tick-borne illnesses, such as Lyme disease, a new study finds.

In the United States, tick-borne illnesses more than doubled between 2004 and 2018, according to the U.S. Centers for Disease Control and Prevention.

For the new study, the researchers surveyed tick management progra...

As pandemic-related restrictions ease and people return to parks and other outdoor spaces, remember to protect yourself against another threat -- ticks.

"With our latest mild winter, ticks have been active in much of the region on warmer days all winter long," said Jody Gangloff-Kaufmann, an entomologist at Cornell University in Ithaca, N.Y., who said it's too soon to predict populati...

The mystery of "stinging water" has been solved, scientists say.

Stinging water is the seawater near and around upside-down jellyfish (Cassiopea) -- and swimmers can get stinging, itchy skin while submerged in it, even if they have no direct contact with the creatures themselves.

But it wasn't clear in the past if the jellyfish were to blame for this discomfort, since...

Lab-altered mosquitoes have made a big dent in the spread of dengue fever, researchers report.

How? Australian scientists released mosquitoes carrying a bacteria that prevents transmission of the dengue virus.

The strategy resulted in a 76% decrease in dengue transmission in a community in Indonesia that has frequent dengue outbreaks. Similar reductions were seen in an u...

A global coalition of more than 11,000 scientists warns that planet Earth is facing a "climate emergency" that will cause "untold human suffering" unless drastic steps are taken.

The warming climate is already taking a toll on human health, causing widespread hunger and illness that will grow exponentially worse, said the warning's lead author, William Ripple. He's a professor of ecol...

Some mosquitoes spread diseases to humans through their bite, passing along harmful pathogens like Zika, dengue fever, West Nile virus and chikungunya.

Now humans are turning the tables, infecting these dangerous mosquitoes with bacteria that sabotage their ability to spawn.

Chinese researchers were able to reduce these mosquito populations by as much as 94% using a bact...

Although unwelcome, insect stings pose a serious risk threat to only a small percentage of people, a medical expert says.

"While millions of people suffer insect stings, true allergic reactions occur in a mere 0.4 to 0.8% of children and up to 3% of adults," said Dr. Morissa Ladinsky. She is an associate professor of pediatrics and adolescent medicine at the University of Alab...

Summer is synonymous with mosquitoes, and that means possible exposure to the West Nile and Zika viruses. Both are spread mainly through mosquito bites.

Most people won't experience symptoms from either virus, but there are important differences to be aware of.

West Nile

  • Up to 20% of infected people have symptoms, such as a fever, headache, body ach...

Many flies and flying insects in hospitals carry bacteria that could pose an infection risk to patients, and more than half of them carry the types that resist antibiotics, a new study says.

British researchers used ultraviolet-light flytraps, electronic fly killers and sticky traps to collect nearly 20,000 flies, aphids, ants, wasps, bees and moths at seven hospitals in England over ...

No parent wants their child to suffer a dog bite, and new research offers some guidance on which dogs are the riskiest around young kids.

The body size and head shape of dogs affect the bite and injury risk they pose, the researchers found.

For the study, the investigators examined 15 years of visits for facial dog bites at two emergency departments, and more than 45 years o...

As deer populations have exploded across America, moving from forests to suburbs to urban parks, they have brought the threat of Lyme disease to millions of city dwellers, a new study finds.

In fact, the deer tick that spreads Lyme disease is as prevalent in many New York City parks as it is in areas known to be endemic for the bacterial disease, such as Connecticut and other states i...

It sounds like something out of a horror film: A blood-hungry insect feeds on its prey's faces while they sleep, leaving behind a parasite that can cause stroke and heart disease.

But the triatomine, or so-called "kissing bug," is all too real and found regularly in Latin America, but also has been found in several areas of the United States, as far north as Illinois and Delaware. An...

Strong currents and sharks aren't the only threat to saltwater swimmers in Australia. A deadly jellyfish often tops their list of threats.

But researchers working with mice have discovered a potential antidote to the lethal sting of the Australian box jellyfish -- the world's most venomous sea creature.

The treatment in question? A cholesterol drug.

Each box jellyf...

You now have an excuse to skip cutting the grass every weekend -- it's beneficial for the bees.

And mowing your lawn less often to provide native bees a better habitat won't lead to an increase in disease-carrying ticks, experts say.

When research ecologist Susannah Lerman began urging friends and colleagues to leave lawns a bit longer to help the bees, the "first thing peop...

Certain tick bites can cause a red meat allergy, and now scientists are shedding new light on the condition, known as alpha-gal syndrome.

Alpha-gal is a sugar found in most mammal blood, but not in humans.

"Our original hypothesis was that humans developed the allergy after being exposed to alpha-gal through a tick that had fed on a deer, dog or other small mammal that has ...